High-Protein Cinnamon Swirl Coffee Cake Oats (Printable Version)

Wholesome baked oats with cinnamon swirl and protein, perfect for breakfast.

# What You Need:

→ Oat Base

01 - 2 cups rolled oats
02 - 1 cup unsweetened almond milk
03 - 2 large eggs
04 - 1 cup plain Greek yogurt, nonfat or 2%
05 - 1/4 cup vanilla or unflavored protein powder
06 - 1/4 cup maple syrup or honey
07 - 1 teaspoon vanilla extract
08 - 1 teaspoon baking powder
09 - 1/4 teaspoon salt

→ Cinnamon Swirl and Crumble

10 - 1/3 cup brown sugar or coconut sugar
11 - 2 teaspoons ground cinnamon
12 - 2 tablespoons melted unsalted butter or coconut oil
13 - 2 tablespoons all-purpose flour or oat flour
14 - Pinch of salt

# Step-by-Step:

01 - Preheat oven to 350°F. Grease an 8x8-inch baking dish with butter or cooking spray.
02 - In a large mixing bowl, combine rolled oats, almond milk, eggs, Greek yogurt, protein powder, maple syrup, vanilla extract, baking powder, and salt. Stir until thoroughly combined.
03 - In a separate small bowl, mix brown sugar, ground cinnamon, melted butter, flour, and salt until crumbly consistency forms.
04 - Transfer half of the oat mixture into the prepared baking dish. Distribute half of the cinnamon crumble evenly across the surface.
05 - Pour remaining oat mixture over the crumble layer. Top with remaining cinnamon crumble mixture.
06 - Using a knife, gently swirl the crumble topping through the oat mixture to create a marbled visual effect.
07 - Bake for 30 to 35 minutes until the top achieves a golden color and the center is fully set.
08 - Remove from oven and allow to cool for 10 minutes before portioning and serving.

# Expert Advice:

01 -
  • It tastes like indulgent coffee cake while sneaking 15 grams of protein into every slice, so you're not sacrificing flavor for function.
  • The prep is genuinely ten minutes, meaning even on chaotic mornings you can have hot cake waiting for you instead of another sad protein shake.
  • That cinnamon swirl creates a visual moment every time you cut into it, which sounds silly but actually makes eating breakfast feel intentional.
02 -
  • If you use too much protein powder, you'll get that artificial chalky taste that overpowers everything—start with the quarter cup and only increase if you really want to push the macro numbers.
  • The cinnamon swirl is what makes people think this is indulgent coffee cake instead of a health thing, so don't skip it or reduce it just because you're trying to be healthy.
03 -
  • Room temperature ingredients mix more smoothly together, so pull your eggs and yogurt out of the fridge fifteen minutes before you start if you have the time.
  • The cinnamon swirl stays defined and doesn't muddy together if you let the cake cool completely before slicing, even though eating it warm is tempting.
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