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A rectangular slice of chocolate Napoleon cake sits on a plate, showing alternating thin golden, flaky pastry layers and smooth chocolate cream, with a glossy dark chocolate topping and delicate crumbs along its cut edges.

Chocolate Napoleon cake Calories

Layered puff pastry dessert with chocolate cream

In season: Spring · Summer · Autumn · Winter

CALORIES · 100 G

395kcal

GI

58medium

POTASSIUM · 100 G

165mg

FIBER · 100 G

2.1g

Quick answer

1 slice (medium) of Chocolate Napoleon cake (120 g) has 474 calories. That works out to 395 calories per 100 g. It contains 46.7 g of carbs, 6.7 g of protein, 29.8 g of fat and 2.5 g of fiber. Its 10.2 µg of Selenium covers 19% of the Daily Value. Its glycemic index is 58 (medium), so it raises blood sugar at a moderate pace.

Chocolate Napoleon cake Nutrition Facts

Selected: 1 slice (medium) · 120 g

474

KCAL / 120G

Carbs

46.7g

· 17% DV

Protein

6.7g

· 13% DV

Fat

29.8g

· 38% DV

Fiber

2.5g

· 9% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 39% · Protein 6% · Fat 55%

Chocolate Napoleon cake nutrition facts table · 1 slice (medium) (120 g)

NutrientAmount% DV
Calories474 kcal
Total fat29.8 g38%
Saturated fat13.44 g67%
Trans fat0.22 g
Sodium252 mg11%
Total carbohydrate46.7 g17%
Fiber2.5 g9%
Protein6.7 g13%

Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.

Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.

Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.

Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.

Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.

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How Many Calories in 1 Slice of Chocolate Napoleon cake?

ServingAmountCalories
1 slice (medium)120 g474 kcal
1 piece (small)45 g178 kcal
1 slice (thin)80 g316 kcal
1 piece (medium)90 g356 kcal
100 g100 g395 kcal
1 serving (small)100 g395 kcal
1 piece (large)160 g632 kcal
1 slice (thick)170 g672 kcal
1 serving (large)180 g711 kcal

Calculated from 395 calories per 100 g.

Frequently Asked Questions About Chocolate Napoleon cake

What is a Chocolate Napoleon cake?

A Chocolate Napoleon cake is a layered dessert made with crisp puff pastry sheets and chocolate cream between them. The top is often finished with pastry crumbs, chocolate, or a thin icing; chilling lets the filling set for slicing.

How do you make Chocolate Napoleon cake?

Bake thin puff pastry sheets until golden, prepare a thick chocolate pastry cream, and spread the cooled cream between the pastry layers. Stack the layers, finish the top, and chill the cake so the filling holds together when cut.

Is Chocolate Napoleon cake the same as chocolate mille-feuille?

They are closely related layered puff pastry desserts, and the names are sometimes used for similar cakes. Chocolate Napoleon usually highlights chocolate cream between the layers, while classic mille-feuille is more often filled with vanilla pastry cream.

Why is Chocolate Napoleon cake called Napoleon cake?

The name is linked to Napoleon-style layered cakes, but the dessert’s exact origin is disputed. A well-known Russian version is traditionally associated with the anniversary of Napoleon’s defeat in Russia and is made with many pastry and cream layers.

What kind of chocolate cream goes in Chocolate Napoleon cake?

Chocolate pastry cream is the usual filling: a thick custard flavored with chocolate or cocoa. Some recipes use chocolate ganache or a whipped chocolate cream instead, but a firm filling is easiest to stack between crisp pastry sheets.

How do you keep Chocolate Napoleon cake from getting soggy?

You cannot keep Chocolate Napoleon cake perfectly crisp once the cream has had time to soak into the pastry. Bake the sheets thoroughly, let them cool before filling, and assemble closer to serving if you want more crunch.

Can you make Chocolate Napoleon cake with store-bought puff pastry?

Yes, store-bought puff pastry works well for Chocolate Napoleon cake. Roll or cut it into even sheets, prick it to limit excessive puffing, and bake it until fully golden so it can support the layers of chocolate cream.

How long does Chocolate Napoleon cake last in the fridge?

Keep Chocolate Napoleon cake covered in the refrigerator because its chocolate pastry cream is perishable. It is best enjoyed while the pastry still has some crispness; the layers soften as they absorb moisture from the filling.

Can you freeze Chocolate Napoleon cake?

Yes, but freezing can make the pastry less crisp and may change the cream’s texture after thawing. Wrap the cake tightly, thaw it in the refrigerator, and expect a softer result than freshly assembled Chocolate Napoleon cake.

What can you use instead of pastry cream in Chocolate Napoleon cake?

For a different Chocolate Napoleon cake filling, use a stable chocolate ganache or whipped chocolate cream. Ganache gives a richer, denser layer, while whipped cream is lighter but may not hold the cake’s layers as firmly.

Chocolate Napoleon cake Vitamins & Minerals

Vitamins

Vitamin A

144µg · 16% DV

B2

0.19mg · 15% DV

B12

0.34µg · 14% DV

Biotin

3.84µg · 13% DV

Minerals

Selenium

10µg · 18% DV

Copper

0.14mg · 16% DV

Phosphorus

110mg · 16% DV

Manganese

0.34mg · 15% DV

Sodium

252mg · 11% DV

Potassium ⭐

198mg · 6% DV

Chocolate Napoleon cake Glycemic Index

GLYCEMIC INDEX

58
Medium
0 Low5570100

GLYCEMIC LOAD

27.6
High

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Chocolate Napoleon cake

To burn the 474 calories in 1 slice (medium) (120 g):

🚶

117min

Walking (5 km/h)

🏃

48min

Running (8 km/h)

🚴

64min

Cycling

🏊

55min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

What is Chocolate Napoleon cake?

Chocolate Napoleon cake layers crisp puff pastry with chocolate cream, making a rich, flaky dessert. Napoleon-style layer cakes are especially familiar in Eastern Europe, though recipes and fillings vary; this version pairs buttery pastry with a smooth chocolate filling.

It is usually served chilled, when the cream has settled between the layers. As it rests, the pastry softens slightly while retaining some of its flaky texture. A slice works well with coffee or tea, or as a celebratory dessert. It is energy-dense, with pastry and cream contributing much of its fat and carbohydrate; 100 g provides 395 calories. For a lighter serving, cut a smaller slice and pair it with fresh fruit.

How Nutritious Is Chocolate Napoleon cake?

Nutrient density

Low

22/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Low

19/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Is Chocolate Napoleon cake Processed?

NOVA 3

Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Chocolate Napoleon cake Contain Allergens?

Contains these allergens:

Gluten yes
Dairy yes
Eggs yes
Peanuts free
Tree nuts free
Fish free
Soy free
Sesame free

Which Diets Is Chocolate Napoleon cake Good For?

Vegan

— Not suitable

Vegetarian

✓ Suitable

Gluten-Free

— Not suitable

Dairy-Free

— Not suitable

Mediterranean

— Not suitable

Paleo

— Not suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Chocolate Napoleon cake Fat Profile

SATURATED

13.44g

MONOUNSATURATED

9.72g

POLYUNSATURATED

3.24g

⚖️

Omega 6:3 ratio 48:1

Above the ideal 4:1 (48:1).

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Nutrition data compiled from USDA FoodData Central and scientific sources.