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A delicious protein mug cake with a rich, brown cinnamon swirl visible, elegantly presented in a ceramic mug.

15g Protein Cinnamon Mug Cake Magic in 5 Minutes

This quick and protein-packed cinnamon mug cake is perfect for satisfying your sweet tooth in just minutes. Enjoy a warm, flavorful treat with a healthy twist.
Prep Time 2 minutes
Cook Time 2 minutes
Total Time 4 minutes
Course Dessert
Cuisine American
Servings 1 serving
Calories 250 kcal

Ingredients
  

Dry ingredients

  • 1 scoop vanilla protein powder (whey or plant-based)
  • 2 tbsp all-purpose flour (or oat flour)
  • ½ tsp baking powder
  • 1 tbsp granulated sweetener (or sugar)
  • ¼ tsp cinnamon

Wet ingredients

  • 3 tbsp milk of choice
  • 1 tbsp Greek yogurt
  • 1 tbsp melted butter or coconut oil
  • ¼ tsp vanilla extract

Cinnamon swirl

  • 1 tsp brown sugar (for cinnamon swirl)
  • ½ tsp cinnamon (for cinnamon swirl)
  • ½ tsp melted butter (for cinnamon swirl)

Frosting

  • 2 tbsp Greek yogurt or light cream cheese (for frosting)
  • 1 tbsp vanilla protein powder (for frosting)
  • 1–2 tsp milk (for frosting)

Optional topping

  • Drizzle sugar-free caramel sauce (optional)

Instructions
 

  • Mix protein powder, flour, baking powder, sweetener, cinnamon, and salt in a mug.
  • Stir in milk, Greek yogurt, melted butter, and vanilla until smooth.
  • Combine brown sugar, cinnamon, and melted butter for the swirl; drop into batter and swirl with a toothpick.
  • Microwave for 60–90 seconds until set but still soft.
  • Mix frosting ingredients and spread over the warm cake; drizzle caramel if desired.

Notes

For best results, use a microwave-safe mug and adjust cooking time as needed.
Keyword cinnamon, mug cake, protein