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Black Forest Protein Cake

Black Forest Protein Cake

This recipe is super easy to make, really tasty, and possibly one of the most protein-packed cakes ever!

It’s a cake that doesn’t constitute a ‘cheat meal’. It’s a cake you can dig into post-workout without feeling an inch of ‘I shouldn’t have…’.

It’s a cake you can impress friends and family with and make on not only your birthday but year round.

Sounds good right? Lets get into EXACTLY how you make a Black Forest Protein Cake:

Ingredients for the Cake:

1/2 cup vanilla or chocolate flavoured whey protein powder
1 cup liquid egg whites
1 tablespoon coconut flour
2 small pots 2% Greek yogurt
1/4 cup cocoa powder
3/4 cup rolled oats – gluten free or regular
1/2 teaspoon baking powder
1/2 cup almond milk 

Ingredients for the Frosting:

2 big pots 0% Greek yogurt

1 cup vanilla or peanut butter flavoured whey protein powder

4 tablespoons coconut flour  


1. First, make your cake by blending all the cake ingredients together using a food processor or handheld blender. Bake the mix in a medium cake pan – use a silicone cake pan to ensure it doesn’t stick –  for about 45-55 minutes at 170 C or until, when poked with a knife, your knife comes out clean.

2. Allow it to cool and, once it has cooled, slice it horizontally into three. These will be the layers of your cake. 

3. Mix your frosting ingredients together, again using a handheld blender or food processor.

4. Layer the frosting between the layers of cake, around them, and on top. Then (if you want), pipe some of the frosting on top of the cake for added aesthetics and throw on some cherries. Add some shaved dark chocolate on top too!

5. Dig in!

per slice (out of 8):

32g protein
15g carbs (out of which 4g is fibre)
5g fat


Add a layer of sugar-free jam in between the cake slices. If you’re making a Black Forest Gateau, adding a thin layer of strawberry or cherry jam goes fantastically well!

If you want to substitute the vanilla whey protein for chocolate, you can! This will make for a super chocolatey cake.

For the frosting, you can use vanilla casein instead of whey. It’ll make the frosting a lot creamier! If you do use casein instead of whey though, remove the coconut flour.


Whey Protein 360

Protein Grazers

Micellar Casein

Casein protein powder
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