High-Protein Cinnamon Roll Mug Cake (Printable Version)

Warm, fluffy mug cake swirled with cinnamon sugar and topped with creamy frosting packs 20g protein in just 7 minutes.

# What You’ll Need:

→ Cake Batter

01 - 1/4 cup vanilla protein powder
02 - 2 tablespoons oat flour
03 - 1/4 teaspoon baking powder
04 - 1/4 teaspoon ground cinnamon
05 - 1 tablespoon granulated sweetener
06 - Pinch of salt
07 - 3 tablespoons milk
08 - 1 large egg white
09 - 1/2 teaspoon vanilla extract

→ Cinnamon Swirl

10 - 1/2 tablespoon melted butter or coconut oil
11 - 1 tablespoon brown sugar or coconut sugar
12 - 1/2 teaspoon ground cinnamon

→ Cream Cheese Topping

13 - 1 1/2 tablespoons light cream cheese, softened
14 - 1 teaspoon milk
15 - 1/2 tablespoon powdered sweetener or sugar
16 - 1/4 teaspoon vanilla extract

# Method:

01 - In a microwave-safe mug measuring at least 10 fluid ounces, combine protein powder, oat flour, baking powder, cinnamon, sweetener, and salt. Mix thoroughly until evenly distributed.
02 - Add milk, egg white, and vanilla extract to the dry mixture. Stir until a smooth, lump-free batter forms.
03 - In a small bowl, combine melted butter, brown sugar, and cinnamon until well blended.
04 - Drop spoonfuls of the cinnamon mixture onto the batter surface. Use a toothpick or knife to gently swirl the mixture through the batter in decorative patterns.
05 - Microwave on high power for 60 to 90 seconds, until the cake is set but still moist in the center. Avoid overcooking.
06 - While the cake cools slightly, whisk together cream cheese, milk, powdered sweetener, and vanilla extract until smooth and spreadable.
07 - Spread the cream cheese topping over the warm mug cake. Serve immediately.

# Expert Hints:

01 -
  • It's genuinely ready faster than most people can order delivery, yet tastes like you actually tried.
  • Twenty grams of protein hiding in what tastes like a cinnamon roll means you can eat dessert and feel good about it.
  • The cream cheese swirl on top adds that indulgent bakery touch that makes it feel like a real treat, not a quick fix.
02 -
  • Overcooking by even 20 seconds turns this from tender to rubbery; your microwave is powerful and impatient, so start checking at 60 seconds.
  • Letting the cream cheese sit at room temperature for five minutes before beating it makes the difference between a grainy topping and one that's silky smooth.
03 -
  • Use a larger mug than the minimum size because the batter rises slightly and you don't want overflow drama.
  • If your protein powder is unflavored, add an extra 1/4 teaspoon of vanilla because plain protein can taste chalky without that flavor boost.
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