High Protein Triple Berry Bake

Prep Time: 10 minutes
Cook Time: 25-30 minutes
Total Time: 35-40 minutes
Intensity Level: Easy (1/5) – Minimal mixing, no fancy equipment, beginner-friendly.
Yield: 6 large slices
Dietary Notes: High Protein, Vegetarian, Gluten-Free Option, Refined Sugar-Free Option

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Why You’ll Love This Recipe

This High Protein Triple Berry Bake is the solution to the eternal breakfast dilemma: something that tastes like a coffee cake but fuels you like a protein shake. Packed with 18g of protein per slice, this bake combines tart raspberries, juicy blueberries, and sweet blackberries with a custard-like, high-protein batter.

It bridges the gap between a warm, comforting dessert and a post-workout recovery meal. The texture is soft, almost like a bread pudding, with pockets of jammy berries bursting in every bite. Plus, it requires just one bowl and 10 minutes of active work.

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Ingredients

Dry Ingredients

• 2 scoops (approx. 60g) vanilla or unflavored whey/casein protein powder (see note)

• 1 cup (120g) oat flour (or almond flour for lower carb)

• 1/4 cup (20g) unsweetened vanilla protein powder (optional, for extra boost)

• 1 tsp baking powder

• 1/2 tsp baking soda

• 1/4 tsp salt

• 1 tsp cinnamon

Wet Ingredients

• 1 cup (240g) plain Greek yogurt (2% or full fat)

• 3 large eggs

• 1/3 cup (80ml) unsweetened almond milk (or any milk)

• 1/4 cup (60ml) maple syrup or honey (optional; omit for less sugar)

• 1 tsp vanilla extract

Fruit & Topping

• 2 cups (300g) frozen mixed berries (raspberries, blueberries, blackberries) – do not thaw

• 2 tbsp sliced almonds or sugar-free chocolate chips (optional topping)

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Instructions & Time Intensities

1. Prep & Preheat (5 min, Intensity: Very Low)

Preheat your oven to 350°F (175°C). Lightly grease an 8×8 inch baking dish or line it with parchment paper (leave overhang for easy removal). If using a glass dish, reduce heat to 325°F.

2. Mix Wet Ingredients (3 min, Intensity: Low)

In a large mixing bowl, whisk together the Greek yogurt, eggs, almond milk, maple syrup (if using), and vanilla extract until smooth and slightly frothy. The yogurt will make the mixture thick—that’s correct.

3. Add Dry Ingredients (2 min, Intensity: Low)

Sprinkle the protein powder, oat flour, baking powder, baking soda, salt, and cinnamon directly over the wet mixture. Fold with a rubber spatula just until combined. Do not overmix – a few lumps are fine. Overmixing activates the protein and can make the bake rubbery.

4. Add the Berries (2 min, Intensity: Low)

Add the frozen berries (do not thaw them). Gently fold them in. Thawed berries will bleed purple juice throughout the batter and turn the bake soggy. Frozen berries stay intact and create perfect berry pockets.

5. Transfer & Top (1 min, Intensity: Low)

Pour the batter into your prepared dish. Spread it evenly. Sprinkle with sliced almonds or sugar-free chocolate chips if desired.

6. Bake (25-30 min, Intensity: None)

Bake on the middle rack for 25 minutes. Check for doneness: insert a toothpick into the center. It should come out clean or with a few moist crumbs (not wet batter). If the top browns too quickly, tent loosely with foil for the last 5 minutes. Bake up to 30 minutes total.

7. Cool & Serve (5+ min, Intensity: Very Low)

Let the bake cool in the pan for at least 10 minutes. This is crucial—the protein structure needs time to set. If you slice it hot, it will be crumbly. Use the parchment sling to lift it out, then slice into 6 squares.

Serving Suggestion: Top with an extra dollop of Greek yogurt, a drizzle of warmed peanut butter, or a sprinkle of powdered erythritol.

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Storage & Meal Prep

• Refrigerator: Store in an airtight container for up to 5 days. The bake firms up when cold—enjoy chilled or reheat.

• Freezer: Wrap individual slices in plastic wrap, then foil. Freeze for up to 3 months.

• Reheat: Microwave for 20-30 seconds or toast in an air fryer at 300°F for 3-4 minutes.

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Nutrition Information

Per serving (1 of 6 slices – using whey protein, oat flour, Greek yogurt, and no added maple syrup)

Percent Daily Values are based on a 2,000 calorie diet. Your values may change depending on ingredient substitutions (e.g., almond flour will increase fat, whey isolate will increase protein).

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Pro Tips & Substitutions

• Protein Powder Choice: Whey creates a fluffier, more cake-like texture. Casein makes it denser and more “brownie-like.” Plant-based proteins work but may require an extra 2 tbsp of milk (they absorb more liquid).

• Make it Vegan: Use vegan protein powder, flax eggs (3 tbsp flax meal + 9 tbsp water), and coconut yogurt.

• Lower Carb: Swap oat flour for almond flour (same amount). Use allulose or monk fruit instead of maple syrup. Net carbs drop to ~6g per slice.

• Extra Protein: Add 2 tbsp of peanut butter powder or mix 1/4 cup cottage cheese into the wet ingredients (reduce milk by 2 tbsp).

• Berry Swaps: Use only one berry type, or try chopped strawberries and cherries. Frozen mango works too, but it won’t be “triple berry.”

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Troubleshooting

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Final Notes from the Chef

This High Protein Triple Berry Bake has over 1,200 5-star reviews from our community. It’s the most popular “sweet breakfast” recipe on the site because it solves a real problem: getting 18g of protein without a chalky smoothie or a rubbery egg white muffin.