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Opera cake Calories
Rich French layered cake with coffee syrup, almond sponge, chocolate ganache, and coffee buttercream
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 slice (medium) of Opera cake (90 g) has 347 calories. That works out to 385 calories per 100 g. It contains 33.1 g of carbs, 5 g of protein, 22.3 g of fat and 1.9 g of fiber. Its 162 µg of Vitamin A covers 18% of the Daily Value. Its glycemic index is 52 (medium), so it raises blood sugar at a moderate pace.
Opera cake Nutrition Facts
Selected: 1 slice (medium) · 90 g
347
KCAL / 90G
Carbs
33.1g
· 12% DV
Protein
5g
· 10% DV
Fat
22.3g
· 29% DV
Fiber
1.9g
· 7% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 37% · Protein 6% · Fat 57%
Opera cake nutrition facts table · 1 slice (medium) (90 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 347 kcal | |
| Total fat | 22.3 g | 29% |
| Saturated fat | 11.88 g | 59% |
| Trans fat | 0.36 g | |
| Sodium | 131 mg | 6% |
| Total carbohydrate | 33.1 g | 12% |
| Fiber | 1.9 g | 7% |
| Protein | 5 g | 10% |
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 Opera cake?
| Serving | Amount | Calories |
|---|---|---|
| 1 slice (medium) | 90 g | 347 kcal |
| 1 ounce (small) | 28 g | 108 kcal |
| 1 piece (small) | 35 g | 135 kcal |
| 1 piece (medium) | 55 g | 212 kcal |
| 1 slice (thin) | 60 g | 231 kcal |
| 1 piece (large) | 85 g | 327 kcal |
| 100 g | 100 g | 385 kcal |
| 1 serving (large) | 120 g | 462 kcal |
| 1 slice (thick) | 130 g | 501 kcal |
Calculated from 385 calories per 100 g.
Frequently Asked Questions About Opera cake
What is Opera cake made of?
Opera cake is made with thin layers of almond sponge soaked in coffee syrup, coffee buttercream, and chocolate ganache. A smooth chocolate glaze often covers the top, giving the French pastry its distinctive layered appearance.
Where did Opera cake originate?
Opera cake is a French pastry associated with Paris. The version familiar today became popular through Parisian pâtisseries in the 20th century, though accounts differ about exactly who first created it.
What does Opera cake taste like?
Opera cake tastes like a balanced combination of coffee, chocolate, and almond. The coffee syrup and buttercream give it a pronounced coffee flavor, while chocolate ganache adds richness and the almond sponge contributes a delicate nuttiness.
Is Opera cake the same as tiramisu?
No. Opera cake layers almond sponge with coffee buttercream and chocolate ganache, while tiramisu is typically made with coffee-soaked ladyfingers and mascarpone cream. Opera cake is usually firmer and easier to cut into neat slices.
How do you make Opera cake?
To make Opera cake, layer thin almond sponge brushed with coffee syrup with coffee buttercream and chocolate ganache. Chill the assembled cake so the layers set, then finish the top with chocolate glaze and trim the edges for clean slices.
Does Opera cake contain alcohol?
No, alcohol is not required in traditional Opera cake; coffee syrup provides its characteristic flavor. Some recipes or bakeries add coffee liqueur, however, so ask about the specific cake if you need to avoid alcohol.
Should Opera cake be served cold or at room temperature?
Opera cake should be served chilled enough to hold its layers, but not straight from a very cold refrigerator. Letting it sit briefly before serving softens the buttercream and makes the coffee and chocolate flavors more noticeable.
How should you store Opera cake?
Store Opera cake covered in the refrigerator because its buttercream and ganache soften at room temperature. For the best texture and flavor, eat it within a few days and let each portion sit briefly before serving.
Can you freeze Opera cake?
Yes, Opera cake freezes well when wrapped tightly and sealed in an airtight container. Thaw it slowly in the refrigerator before serving; refreezing a thawed cake can damage the buttercream and make the layers less pleasant.
Is Opera cake difficult to make at home?
Yes, Opera cake takes care and time because its thin sponge, coffee syrup, buttercream, and ganache must be prepared and assembled in separate layers. You can make the components ahead and chill the cake between steps for neater results.
Opera cake Vitamins & Minerals
Vitamins
Vitamin A
162µg · 18% DV
B2
0.16mg · 12% DV
Biotin
3.6µg · 12% DV
Vitamin E
1.71mg · 11% DV
Minerals
Copper
0.14mg · 16% DV
Selenium
7.65µg · 14% DV
Phosphorus
97mg · 14% DV
Manganese
0.25mg · 11% DV
Sodium
131mg · 6% DV
Potassium ⭐
167mg · 5% DV
Opera cake Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off Opera cake
To burn the 347 calories in 1 slice (medium) (90 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
What is Opera cake?
Opera cake is a classic French pâtisserie cake made from thin layers of almond sponge soaked in coffee syrup, coffee buttercream and chocolate ganache. A smooth chocolate glaze usually finishes the top, giving each slice distinct, compact layers.
In France it is a familiar choice in pâtisseries and cafés, often served with coffee; elsewhere, it works just as well as a celebration cake or an elegant dessert with an after-dinner espresso. Its soft sponge contrasts with rich, creamy filling, and the coffee balances the chocolate. With 385 calories per 100 g, it is a rich treat, so a modest slice alongside unsweetened coffee makes a satisfying serving.
How Nutritious Is Opera cake?
Nutrient density
Low
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
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 Opera 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 Opera cake Contain Allergens?
Contains these allergens:
Which Diets Is Opera 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
Opera cake Fat Profile
SATURATED
11.88g
MONOUNSATURATED
6.66g
POLYUNSATURATED
1.89g
Omega 6:3 ratio 24.4:1
Above the ideal 4:1 (24.4:1).
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Nutrition data compiled from USDA FoodData Central and scientific sources.