High Protein Streuselkuchen (German Crumb Cake)

Indulge in a healthy twist on a classic German dessert with this High Protein Streuselkuchen (German Crumb Cake). Perfectly moist and tender, this cake combines almond flour, oat flour, and vanilla-flavored whey protein powder to create a protein-packed base that’s both nutritious and flavorful. Topped with a buttery cinnamon streusel and optional chopped nuts, it delivers a delightful crunch and aromatic sweetness in every bite. Sweetened with your choice of granulated erythritol or sugar, this recipe is ideal for health-conscious bakers. Ready in just under an hour, this guilt-free treat is perfect for breakfast, snack time, or post-workout indulgence, offering a delightful balance of classic crumb cake charm and modern nutritional appeal.

Nutriscore Rating: 63/100

Prep Time:20 mins

Cook Time:35 mins

Total Time:55 mins

Servings: 8

Ingredients

• 120 grams Almond flour
• 60 grams Whey protein powder (vanilla flavor)
• 100 grams Oat flour
• 2 teaspoons Baking powder
• 0.5 teaspoons Salt
• 200 grams Unsweetened Greek yogurt
• 2 large Eggs
• 60 milliliters Milk (dairy or plant-based)
• 1 teaspoon Vanilla extract
• 50 grams Granulated sweetener (erythritol or regular sugar)
• 50 grams Unsalted butter, melted
• 1 teaspoon Cinnamon powder
• 30 grams Chopped nuts (optional, e.g., almonds or walnuts)

Directions

Step 1

Preheat your oven to 175°C (350°F) and lightly grease a 9-inch (23 cm) round or square baking dish. Line it with parchment paper for easy removal, if desired.

Step 2

In a medium bowl, combine almond flour, whey protein powder, oat flour, baking powder, and salt. Whisk until the dry ingredients are evenly mixed.

Step 3

In a separate large bowl, beat the eggs and granulated sweetener until light and frothy. Mix in the Greek yogurt, milk, melted butter, and vanilla extract until fully combined.

Step 4

Gradually add the dry ingredient mixture into the wet ingredients, stirring until a smooth batter forms. Avoid overmixing.

Step 5

Pour the batter into the prepared baking dish, spreading it evenly.

Step 6

For the streusel topping, mix almond flour, cinnamon powder, and granulated sweetener in a small bowl. Add small cubes of cold unsalted butter to the mixture and use your fingers to work it into a crumbly texture. If using, fold in the chopped nuts.

Step 7

Scatter the streusel topping evenly over the cake batter, pressing it gently into the batter so it sticks.

Step 8

Bake the cake in the preheated oven for 30-35 minutes, or until the cake is golden, and a toothpick inserted into the center comes out clean.

Step 9

Allow the cake to cool in the pan for 15 minutes, then transfer it to a wire rack to cool completely before slicing.

Step 10

Serve the Streuselkuchen fresh or store it in an airtight container for up to 3 days.

Nutrition Facts

Serving size	(789.9g)

Amount per serving	% Daily Value*
Calories	2394.8

Total Fat 141.3g	0%
Saturated Fat 38.9g	0%
Polyunsaturated Fat g
Cholesterol 556.2mg	0%
Sodium 2426.1mg	0%
Total Carbohydrate 171.8g	0%
Dietary Fiber 23.5g	0%
Total Sugars 70.0g
Protein 128.9g	0%

Vitamin D 107.4IU	0%
Calcium 931.7mg	0%
Iron 12.8mg	0%
Potassium 1348.5mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 51.4%

Protein: 20.8%

Carbs: 27.8%