Last reviewed on 14 September 2026.
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That makes the calorie question a practical one. A plum cake is butter, sugar, flour, eggs and a large weight of dried fruit and nuts, often soaked in spirits, baked slowly into something dense and long-lasting. The figures below are estimates with honest ranges, and the reasons they vary are as useful as the numbers.
How many calories are in a slice of Christmas cake?
A standard 60 g slice of rich Christmas cake carries roughly 200 to 250 kcal. A thin 40 g slice of the kind sold in bakery packs comes to about 130 to 170 kcal, and a generous 80 g home-cut slice reaches 260 to 340 kcal. The spread comes from two things: the density of the recipe, meaning how much butter, sugar and fruit it holds, and the thickness of the slice. Most people have no idea what their slice weighs, and a Christmas cake cut from a round tin at home is usually heavier than it looks, because the fruit makes it compact. Weighing one slice once on a kitchen scale is the fastest way to calibrate your eye.
| Slice | Weight | Approximate kcal |
|---|---|---|
| Thin bakery slice | 40 g | 130 to 170 |
| Standard slice | 60 g | 200 to 250 |
| Thick home-cut slice | 80 g | 260 to 340 |
| Marzipan and royal icing layer | 15 g of each | add 120 to 135 |
Based on 330 to 420 kcal per 100 g; weigh one slice to calibrate.
How many calories are in 100 g of plum cake?
Most plum and fruit cakes fall between about 330 and 420 kcal per 100 g. Lighter bakery plum cakes, which use more flour and less fruit and butter, sit towards the lower end. Rich homemade cakes heavy with butter, soaked fruit and nuts sit towards the top, and fed cakes that absorb extra brandy after baking can go a little higher. For comparison, a plain sponge is usually in a similar range, because what fruit cake gains in dried fruit it partly offsets with less air. Packaged cakes print a per-100 g figure on the label, which is the most reliable number you will get for a shop cake.
Where the calories come from: a worked recipe
Adding up a traditional rich fruit cake shows why it is so dense. Take 225 g butter, about 1,610 kcal; 225 g sugar, about 900 kcal; 225 g maida, about 790 kcal; 4 eggs, about 290 kcal; 900 g of mixed dried fruit and peel, about 2,700 kcal; 100 g of nuts, about 600 kcal; and 150 ml of brandy or rum, about 330 kcal. That is roughly 7,220 kcal in about 1.95 kg of batter. Baking drives off water, leaving a cake of roughly 1.75 kg, which works out to about 410 kcal per 100 g. The dried fruit supplies the largest share of calories, and the butter comes second.
| Ingredient | Amount | Approximate kcal |
|---|---|---|
| Mixed dried fruit and peel | 900 g | 2,700 |
| Butter | 225 g | 1,610 |
| Sugar | 225 g | 900 |
| Maida | 225 g | 790 |
| Nuts | 100 g | 600 |
| Brandy or rum | 150 ml | 330 |
| Eggs | 4 | 290 |
About 7,220 kcal in a baked cake of roughly 1.75 kg, or about 410 kcal per 100 g.
Is plum cake the same as fruit cake?
In India the names overlap, but the cakes differ. There are no plums in either; the name is an old English word for dried fruit such as raisins. A commercial Indian plum cake is usually a lighter, sponge-like cake studded with tutti-frutti, raisins and some peel, often coloured dark with caramel. A Kerala plum cake is darker and richer, with caramelised sugar syrup, spices and soaked fruit. An English-style rich fruit cake, the kind that is fed with brandy and covered in marzipan and royal icing, is the densest of all. Dundee cake, topped with almonds, sits in between. Calorie labels for one style should not be applied to another.
How much do marzipan and icing add?
A typical layer of marzipan and royal icing adds roughly 120 to 135 kcal to a slice. Marzipan is ground almonds and sugar, and royal icing is almost entirely sugar with egg white, so both carry about 400 to 450 kcal per 100 g. A slice with a 15 g band of each therefore gains that extra amount, pushing a 60 g slice of iced Christmas cake well past 300 kcal. Fondant icing, common on bakery celebration cakes, is similar. If you like the cake more than the covering, peeling off the icing is the single biggest saving available, and nobody at the table will notice.
How much sugar is in a slice of Christmas cake?
A 60 g slice of the worked recipe above carries roughly 25 g of total sugars, and around a third of that or more is added sugar once the candied peel and glace cherries are counted. The rest comes from the dried fruit itself. The WHO advises keeping free sugars below 10 per cent of daily energy, and ideally below 5 per cent, which on a 2,000 kcal day means under 50 g and ideally about 25 g. One slice therefore does not break a sensible limit, but a slice after lunch, another with evening tea and a piece of kulkul or rose cookie can pass it easily. The page on how much sugar per day explains the limits in Indian terms.
Does the rum or brandy in Christmas cake burn off?
Only partly, and brandy fed into the cake after baking does not burn off at all. A study of alcohol retention in cooking, published in the Journal of the American Dietetic Association in 1992, found that how much alcohol survives depends heavily on method and time, with longer baking removing more but rarely all of it. Soaking fruit for weeks and then baking removes some. Spooning brandy over a finished cake every week, as feeding traditions do, keeps it in. A slice of fed cake holds only a small amount, but families who avoid alcohol for religious or medical reasons, pregnant women and children are better served by a cake soaked in orange or grape juice.
Is dried fruit in cake as good as fresh fruit?
Not quite, although it brings more nutrition than most cake ingredients. Raisins, dates, figs and apricots keep much of their fibre, potassium and polyphenols when dried, and a 2019 review in the International Journal of Food Sciences and Nutrition discussed their contribution to fibre intake and gut health. The same review noted genuine debate about whether dried fruit should count as equal to fresh, because drying concentrates sugar and makes a portion easy to overeat. Candied peel, tutti-frutti and glace cherries are a different product, closer to sweets than to fruit. In a cake, the dried fruit is still eaten alongside butter and sugar, so it makes the cake better without making it light.
Bakery cake, home cake and the fat question
The type of fat matters as much as the amount. Butter and ghee are saturated fats and are best kept moderate, but they do not carry the risk of industrial trans fats. Cheap bakery cakes have historically used vanaspati, bakery shortening or margarine, which were significant sources of trans fat. A 2006 review in the New England Journal of Medicine estimated that each 2 per cent of energy from trans fat was linked to a 23 per cent higher risk of coronary heart disease. FSSAI has since capped industrial trans fat at 2 per cent of the fat in oils and fats, which has improved matters, so check the label for hydrogenated fat anyway, particularly on unbranded loose cakes.
Do eggless, atta or jaggery versions save calories?
Mostly they do not, although some are better in other ways. Eggless plum cakes often replace eggs with condensed milk, curd or extra oil, which leaves calories similar or higher. Replacing half the maida with whole wheat atta adds fibre, as the post on whether maida is bad for health explains, but barely changes calories. Jaggery gives a lovely flavour and trace minerals, yet it is still sugar, gram for gram, as jaggery, honey or sugar sets out. The real savings come from less butter, less added sugar, fewer candied pieces and a thinner slice. A label saying sugar-free or eggless says nothing about calories.
Can people with diabetes eat Christmas cake?
Many people with diabetes can eat a small slice on Christmas Day if they plan it. A 40 g slice counts as a carbohydrate portion of roughly one small roti or a little more, delivered largely as sugar, so it is better eaten after a meal containing protein and vegetables than on its own with sweet tea. Check glucose two hours afterwards the first time. Diabetic or sugar-free cakes often still contain flour, dried fruit and fat and can raise blood sugar. Anyone on insulin or sulphonylurea tablets whose readings swing widely over the holidays should speak to their doctor about adjusting their plan rather than guessing.
Will a week of Christmas cake make you gain weight?
A week of a slice or two a day can add a few hundred grams if nothing else changes. Weight follows calories, and a BMJ meta-analysis of sugar trials found that increasing sugar intake raised body weight by about 0.75 kg in trials, while swapping sugar for other carbohydrate at equal calories made no difference, which means the effect runs through energy. A 2017 review of holiday studies found adults gained 0.4 to 0.9 kg across the festive weeks. Christmas cake is rarely the only extra, since it sits beside roast dinners, biryani, wine and sweets. The wider pattern is covered in does winter make you gain weight.
How to bake a lighter Christmas cake that still tastes right
Rich fruit cake is forgiving, which makes it easy to lighten. Cut the added sugar by a quarter, because the soaked fruit supplies plenty of sweetness. Swap half the candied peel and tutti-frutti for chopped dates, figs or apricots. Replace half the maida with atta or almond flour. Reduce the butter by about a fifth and add grated apple or orange zest for moisture. Soak the fruit in orange juice with a little spice if you want a cake without alcohol. Bake in a loaf tin rather than a deep round one, since loaf slices are easier to cut thin. The cake will be slightly less dense and still keeps well for two weeks.
Lightening a Christmas cake recipe
Changes that trim calories and sugar while keeping the dense, spiced character of a fruit cake.
Cut added sugar by a quarter
Soaked dried fruit already sweetens the cake, so the texture holds with less sugar.
Swap candied pieces for whole dried fruit
Replace half the tutti-frutti and peel with chopped dates, figs or apricots for more fibre and less added sugar.
Trim the butter
Reduce it by about a fifth and add grated apple or orange zest to keep the crumb moist.
Soak in juice if needed
Orange or grape juice with spice gives an alcohol-free cake for children and anyone avoiding alcohol.
Bake in a loaf tin and slice thin
Loaf slices are easier to cut at 40 g, and a smaller cake is less likely to be grazed on all week.
Why the slice matters more than the recipe
Portion size has a larger effect on what people eat than most recipe changes. A Cochrane review of 72 studies found moderate-quality evidence that bigger portions, packages and plates make both adults and children eat more, without them noticing. For a Christmas cake, that means cutting 40 g slices in advance and arranging them on a plate, rather than leaving a whole cake and a knife on the table. Store the rest wrapped in the cupboard. If you give cake as a gift, a small loaf goes further than a large round. Serve it with a cup of unsweetened tea or coffee rather than a sweet drink.
Baking with nutrition in mind
Home bakers and small bakery owners increasingly get asked the same questions: how many calories are in this, can it be made with less sugar, and is the eggless version any lighter. Answering well means knowing how each ingredient behaves, what a reformulation does to texture and shelf life, and what a label may legally claim. NNWA's Bakery and Healthy Baking Nutrition course covers that ground, from ingredient functions and sugar and fat reduction to calculating nutrition for a recipe. It is taught in live classes by NNWA faculty, with lifetime access to recordings, and free NNWA webinars give a feel for the teaching before anyone enrols.
The short version
A 60 g slice of rich Christmas cake is roughly 200 to 250 kcal, a thin bakery slice about half that, and a thick home slice over 300. Most fruit cakes carry 330 to 420 kcal per 100 g, with dried fruit and butter the biggest sources. Marzipan and icing add roughly 120 to 135 kcal. Brandy fed after baking stays in the cake. Eggless, atta and jaggery versions are not automatically lighter. Cut thin slices in advance, peel off the icing if you do not love it, and enjoy one slice rather than grazing on the tin all week.
Research this article draws on
Te Morenga et al. (2012). Dietary sugars and body weight: systematic review and meta-analyses of randomised controlled trials and cohort studies. BMJ. In trials, cutting sugar lowered body weight by about 0.80 kg and adding sugar raised it by about 0.75 kg, while swapping sugar for other carbohydrate at equal calories changed nothing, so the effect works through energy intake.
Hollands et al. (2015). Portion, package or tableware size for changing selection and consumption of food, alcohol and tobacco. Cochrane Database of Systematic Reviews. Pooling 72 studies, the review found moderate-quality evidence that larger portions and packages increase how much people eat, supporting pre-cut thin slices over a whole cake on the table.
Díaz-Zavala et al. (2017). Effect of the Holiday Season on Weight Gain: A Narrative Review. Journal of Obesity. Studies of adults consistently showed weight gains of about 0.4 to 0.9 kg over the late November to early January holiday season, with self-monitoring programmes appearing to limit the gain.
Mozaffarian et al. (2006). Trans Fatty Acids and Cardiovascular Disease. New England Journal of Medicine. A review estimating that each 2 per cent of energy from trans fat was associated with a 23 per cent higher incidence of coronary heart disease, relevant to cakes made with hydrogenated shortening.
Sadler et al. (2019). Dried fruit and public health to what does the evidence tell us?. International Journal of Food Sciences and Nutrition. A workshop review of dried fruit's composition, fibre, polyphenols and gut effects, which also recorded unresolved debate over whether dried fruit should count as equivalent to fresh in dietary advice.
AUGUSTIN et al. (1992). Alcohol retention in food preparation00661-1). Journal of the American Dietetic Association. Measurements across common cooking methods showed alcohol retention varied widely with method and cooking time, and baking removed some but not all of the alcohol in a dish.
Sources and further reading
- how much sugar per day
- whether maida is bad for health
- jaggery, honey or sugar
- does winter make you gain weight
- Bakery and Healthy Baking Nutrition course
- NNWA webinars
- Dietary sugars and body weight: systematic review and meta-analyses of randomised controlled trials and cohort studies
- Portion, package or tableware size for changing selection and consumption of food, alcohol and tobacco
- Effect of the Holiday Season on Weight Gain: A Narrative Review
- Trans Fatty Acids and Cardiovascular Disease
- Dried fruit and public health to what does the evidence tell us?
- Alcohol retention in food preparation