If you’ve ever wished you could eat cake for breakfast without derailing your nutrition goals, Cinnamon Swirl Protein Cake is the recipe you’ve been waiting for. This light, fluffy, and warmly spiced cake delivers everything you love about a classic cinnamon swirl dessert—while being high in protein, sugar-free, and incredibly quick to make.
Ready in just 17 minutes, this recipe is ideal for busy mornings, post-workout fuel, or a wholesome snack that actually keeps you full. Made with oats, egg whites, vanilla protein powder, and cinnamon, it’s a smart, satisfying option for anyone focused on balanced eating without sacrificing flavor.
Whether you’re managing blood sugar, increasing protein intake, or simply looking for a better breakfast option, this cake proves that nutritious food can still feel indulgent.
Why This Cinnamon Swirl Protein Cake Stands Out
This isn’t just another protein recipe—it’s one that actually bakes well, tastes good, and has a cake-like texture. Many protein-based baked goods turn out dry or rubbery, but this one stays moist, fluffy, and flavorful.
Why You’ll Love This Recipe
- High in protein with over 31 grams per serving
- Sugar-free and suitable for diabetic-friendly eating
- Ready in under 20 minutes
- Made in a blender for easy prep
- Perfect for breakfast, snack, or dessert
- Stores and reheats well for meal prep
This is a recipe you’ll come back to again and again because it works.
Ingredients Breakdown
This recipe makes 2 servings. Ingredients are listed exactly as provided, grouped for clarity.
Batter Ingredients
- ½ cup oats
- 2 egg whites (2 ounces or 6 tablespoons)
- ⅔ cup water
- 2 scoops vanilla protein powder (2 ounces)
- 1 teaspoon Stevia
- 1 teaspoons baking powder
- 1 tablespoon cinnamon
These simple ingredients work together to create structure, sweetness, and flavor without added sugar or fat.
Tools & Equipment Needed
You’ll only need a few basic kitchen tools:
- Blender or high-speed food processor
- Small nonstick pan (about 4.5 inches across)
- Knife (for swirling cinnamon)
- Measuring cups and spoons
- Oven
No mixer, no bowls, and minimal cleanup.
Step-by-Step Instructions
Follow these steps carefully to ensure the best texture and rise. Instructions remain exactly as provided.
1. Preheat the Oven
Preheat the oven to 390 F (200 C).
2. Blend the Batter
Blend everything except the cinnamon until the consistency is smooth.
The mixture should be like thick pancake batter.
Ingredients blended at this stage:
- ½ cup oats
- 2 egg whites
- ⅔ cup water
- 2 scoops vanilla protein powder
- 1 teaspoons baking powder
- 1 teaspoon Stevia
Blending thoroughly is key to achieving a cake-like texture rather than a dense or gritty result.
3. Layer the Batter
Pour half of the batter into a small (about 4.5 inches across) nonstick pan and sprinkle with the cinnamon.
- 1 tablespoon cinnamon
4. Add the Swirl
Pour the remaining batter on top.
Pull a knife through the batter a few times to slightly mix in the cinnamon, creating a swirl effect.
5. Bake and Rest
Bake for 12 minutes, then let it rest for a few minutes before serving.
Resting allows the structure to set and improves texture.
Texture, Flavor & Overall Experience
This Cinnamon Swirl Protein Cake delivers a surprisingly authentic cake experience:
- Soft and fluffy interior
- Warm cinnamon aroma and flavor
- Light sweetness without sugar overload
- Moist crumb thanks to blended oats and egg whites
It tastes like a cinnamon breakfast cake, not a “protein recipe,” which is exactly why it’s so popular.
Tips for Perfect Results Every Time
- Use a vanilla protein powder designed for baking
- Blend until completely smooth to avoid oat texture
- Use a nonstick pan to prevent sticking
- Let the cake rest after baking before slicing
- Don’t over-swirl the cinnamon—less is more
Protein powder quality makes a big difference in the final result.
Variations & Customizations
These ideas keep the base recipe intact while offering subtle changes.
Extra Cinnamon Swirl Look
Focus the cinnamon in the center layer and swirl lightly for a more defined pattern.
Meal Prep Style
Bake, cool completely, slice, and store portions in the fridge for grab-and-go breakfasts.
Dessert-Style Serving
Serve warm with a spoon for a soft, pudding-like texture.
Make-Ahead & Meal Prep Tips
This cake is excellent for meal prep:
- Store in an airtight container in the refrigerator for 3–4 days
- Reheat in the microwave for 30 seconds
- Maintains texture and flavor after reheating
Because it’s high in protein and low in sugar, it stays satisfying even days later.
Storage & Shelf Life
- Refrigerator: 3–4 days in an airtight container
- Reheating: Microwave for 30 seconds
- Freezing: Not recommended due to protein texture changes
Frequently Asked Questions
Is this recipe good for diabetics?
Yes. It’s sugar-free and listed as diabetic-friendly.
Can I use a different protein powder?
You can, but results depend heavily on the powder. A strong vanilla flavor that bakes well is essential.
Why does my cake turn out dry?
This usually happens due to protein powder choice or overbaking.
Can I double the recipe?
Yes, but bake in separate pans to maintain proper rise.
Is this cake sweet?
It’s lightly sweet, designed for breakfast rather than dessert-level sweetness.

Cooking Timeline (At a Glance)
| Step | Time |
|---|---|
| Prep & blending | 5 minutes |
| Baking | 12 minutes |
| Resting | 2–3 minutes |
| Total | 17 minutes |
Nutritional Overview (Per Serving)
- Calories: 217
- Protein: 31.5 g
- Carbohydrates: 17.9 g
- Net Carbs: 13.7 g
- Fat: 1.9 g
- Fiber: 4.2 g
- Sugar: 1.1 g
This makes it ideal for high-protein, low-sugar lifestyles.
Nutrition Estimate Table (Per Serving)
| Nutrient | Amount |
|---|---|
| Calories | 217 |
| Protein | 31.5 g |
| Carbohydrates | 17.9 g |
| Net Carbs | 13.7 g |
| Fat | 1.9 g |
| Fiber | 4.2 g |
| Sugar | 1.1 g |
| Calcium | 511 mg |
| Sodium | 145.9 mg |
Dietary notes: High-protein, sugar-free, diabetic-friendly.
Ingredient Spotlight
Vanilla Protein Powder
Provides structure, sweetness, and protein. Baking performance varies widely between brands.
Oats
Add fiber, structure, and a mild nutty flavor while keeping the cake satisfying.
Cinnamon
Adds warmth, aroma, and natural sweetness without sugar.
Pro Baking Tips for Protein Recipes
- Always blend oat-based batters thoroughly
- Avoid overbaking protein cakes—they continue setting as they cool
- Let rest before slicing to prevent crumbling
- Use consistent scoop sizes for protein powder
Expanded Conclusion
Cinnamon Swirl Protein Cake proves that a high-protein, sugar-free breakfast doesn’t have to be boring—or taste like a compromise. With its soft texture, warm cinnamon flavor, and impressive nutritional profile, it’s a recipe that fits seamlessly into active, health-conscious lifestyles.
Whether you enjoy it fresh from the oven or reheated during a busy week, this cake offers comfort, convenience, and nourishment in every bite. It’s quick, reliable, and endlessly satisfying—exactly what a great protein recipe should be.
Make it once, and it’s almost guaranteed to become a staple in your breakfast rotation.
Print
Easy Baked Cinnamon Swirl Protein Cake | Diabetes Strong
Cinnamon Swirl Protein Cake is a high-protein, sugar-free breakfast cake made with oats, egg whites, and vanilla protein powder. It’s quick to prepare, lightly sweet, and perfect for a healthy breakfast or snack.
- Total Time: 17 minutes
- Yield: 2 servings
Ingredients
- 1/2 cup oats
- 2 egg whites (about 2 oz)
- 2/3 cup water
- 2 scoops vanilla protein powder (about 2 oz)
- 1 teaspoon stevia
- 1 teaspoon baking powder
- 1 tablespoon cinnamon
Instructions
- Preheat oven to 390°F (200°C).
- Blend all ingredients except cinnamon until smooth. Batter should resemble thick pancake batter.
- Pour half the batter into a small nonstick pan (about 4.5 inches wide).
- Sprinkle cinnamon evenly over the batter.
- Pour remaining batter on top and swirl gently with a knife.
- Bake for 12 minutes. Let rest for a few minutes before serving.
Notes
- Makes two servings.
- Store in an airtight container in the refrigerator for up to 4 days.
- Reheat in the microwave for 30 seconds.
- Use a strong-flavored vanilla protein powder for best results.
- Prep Time: 5 minutes
- Cook Time: 12 minutes
- Category: Breakfast, Dessert, Snack
- Method: Baking
- Cuisine: American
- Diet: Diabetic