This High Protein Chocolate Cake has no added sugar, very little fat and loads of protein — a perfect fitness-friendly cake for anyone who wants a high-protein snack. I topped mine with a light chocolate cream cheese frosting and a few fresh berries to make it look as good as it tastes.
Taste and Occasion
Eating this cake won’t replace training, but it is a tasty way to boost daily protein intake and a pleasant alternative to a protein shake. The cake is mildly sweet, soft, and complemented by a creamy topping. Nutritionally, the entire cake contains about 105 g protein, 100 g carbohydrates, 19 g fat and roughly 1,000 calories, depending on the exact ingredients and brands used. That makes it a practical option for a protein-rich breakfast or a post-workout treat.

Ingredients
To keep the cake high in protein and low in fat, this recipe swaps some traditional ingredients for lighter alternatives. It uses one whole egg plus two additional egg whites, sugar-free applesauce (or apple-banana purée) instead of butter, and a low-fat cream cheese frosting made more protein-rich with protein powder. The cake is sweetened primarily by a sweetened chocolate protein powder, so choose a high-quality, multi-component protein that performs well in baking for the best texture and flavor.
The cake is delicious, though it’s not identical to a traditional, rich chocolate cake because fat and sugar carry flavor and moisture. Expect a slightly different texture — denser and less rich — but excellent macros for anyone tracking protein intake.

How to make the High Protein Chocolate Cake
Preheat the oven to 350°F (175°C). Start by beating two egg whites until stiff. In a separate bowl whisk the whole egg together with the applesauce (or apple-banana purée) and almond milk (or cow’s milk).
In another bowl combine the spelt flour, sweetened chocolate protein powder, baking cocoa and baking powder. Add the wet ingredients and mix briefly but thoroughly to form a smooth batter. Gently fold in the beaten egg whites to keep the batter airy.
Pour the batter into a small silicone mold (approximately 7 × 7 in / 18 × 18 cm) and smooth the surface. Bake for about 17 minutes — be careful not to overbake, or the cake will dry out. Allow it to cool completely before decorating.
To achieve a neat finish, you can level the top by slicing off the domed side with a large, sharp knife. For the frosting, mix low-fat cream cheese with chocolate protein powder and a tablespoon of cocoa, then spread the mixture evenly over the cooled cake. Finish with fresh berries as desired and serve.

Top Tip
Use a multi-component, sweetened protein powder that is specifically suitable for baking to get the best texture and flavor. If your protein powder is unsweetened, add a baking-friendly sweetener such as erythritol or xylitol to taste.

Recipe Card
High Protein Chocolate Cake
Protein bomb from the oven: this chocolate protein cake with cream cheese frosting contains no added sugar and hardly any fat, while providing plenty of protein. A great fitness cake and a tasty alternative to a shake.
Baking time: 17 mins
Calories (per small portion, approximate): 86 kcal
Equipment
- Small silicone mold (approx. 7 × 7 in / 18 × 18 cm)
Ingredients
For the cake
- 3 medium eggs (use 1 whole egg + 2 egg whites)
- 4 tbsp sugar-free applesauce (or apple-banana purée)
- 100 ml almond milk (or cow’s milk)
- 100 g spelt flour (type 630)
- 50 g sweetened chocolate protein powder
- 30 g baking cocoa
- ½ sachet baking powder
For the topping
- 200 g low-fat cream cheese (about 3% fat)
- 20 g chocolate protein powder
- 1 tbsp baking cocoa
- Berries for decoration
Instructions
- Preheat the oven to 350°F (175°C). Beat two egg whites until stiff.
- Whisk the whole egg with applesauce and almond milk. In a separate bowl mix flour, protein powder, cocoa and baking powder.
- Add the wet ingredients to the dry and mix briefly but thoroughly to form a homogeneous batter. Fold in the beaten egg whites.
- Pour the batter into the prepared silicone mold and smooth the surface. Bake for about 17 minutes. Let the cake cool completely.
- Optionally level the top by cutting off the dome. For the frosting, mix cream cheese with protein powder and cocoa then spread on the cake. Decorate with berries.
Notes
- The complete cake contains roughly 105 g protein, 100 g carbohydrates, 19 g fat and about 1,000 calories, depending on brands and exact ingredients.
- Recipe yields approximately 8 small pieces.
- You can add pitted cherries or blueberries into the batter if you like.
- If you prefer, use banana purée instead of applesauce.
Ingredient substitutions
There are many possible swaps: different milk types, other flours, or alternative sweeteners. Choose ingredients that match your dietary goals and test small adjustments to maintain the right texture.
Variations
If you enjoy fitness-style baking, try similar recipes such as low-carb brownies, homemade protein bars or a bean-based fitness cake. These recipes explore a range of nutritional approaches — from lower carbs to higher protein or lower fat — so you can pick what fits your goals. If you prefer something indulgent on occasion, keep a classic rich chocolate cake in your repertoire too.