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–+ servings
Cinnamon Mug Cake
5 from 1 vote

Cinnamon Roll Mug Cake

A soft, gooey cinnamon roll mug cake with a layered cinnamon sugar filling, vanilla glaze, and a protein boost that's ready in under 2 minutes with one mug and one bowl.
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Prep Time 5 minutes
Cook Time 1 minute
Total Time 6 minutes
SERVINGS: 1

Ingredients

Mug Cake Batter

  • 3 tbsp all-purpose flour
  • 2 tbsp vanilla protein powder
  • 1/2 tsp baking powder
  • 1 tbsp coconut sugar
  • 1/2 tsp cinnamon
  • Pinch of salt
  • 3 tbsp milk of choice
  • 1 tbsp melted butter
  • 1/4 tsp vanilla extract

Cinnamon Filling

  • 1 tbsp coconut sugar
  • 1/2 tsp cinnamon
  • 1/2 tbsp melted butter

Glaze

  • 2 tbsp Greek yogurt or softened cream cheese
  • 1 tbsp powdered sugar
  • 1-2 tsp milk to thin
  • Tiny splash vanilla

Instructions

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  • Add flour, protein powder, baking powder, brown sugar, cinnamon, and salt directly to your mug. Stir until fully combined.
  • Add milk, melted butter, and vanilla extract. Stir until completely smooth with no dry pockets at the bottom.
  • In a small bowl, mix the filling ingredients until thick and paste-like. If it looks soupy, let it sit a minute before using.
  • Pour half the batter into the mug.
  • Spoon the cinnamon filling over the first layer of batter.
  • Pour the remaining batter on top.
  • Use a knife or toothpick to swirl once or twice. One or two swirls only — overmixing loses the layers.
  • Microwave for 45 seconds. Check it: the top should look set but the center should still feel soft. Add 10-15 more seconds if needed. 60 seconds total is the max.
  • Mix the glaze ingredients and pour over the warm cake immediately.

Notes

 
If it came out dry: you overcooked it. Start at 45 seconds next time and pull it as soon as the top looks set. It keeps cooking for about 30 seconds after you take it out.
If it came out gummy: too much protein powder or slightly undercooked. Use only 1 tbsp and add 10 more seconds next time.
If it came out dense: the batter had dry pockets. Make sure everything is fully smooth before layering.
No protein powder? Swap it for an extra 2 tbsp of all-purpose flour. Same texture, less protein.
Glaze swap: honey or maple syrup instead of the yogurt glaze works great for a simpler version.
Make-ahead tip: mix the dry batter ingredients in a jar ahead of time. When you're ready, just add the wet ingredients and microwave. 90 seconds from jar to glaze.

Nutrition

Serving: 1 | Calories: 509kcal | Carbohydrates: 56g | Protein: 25g | Fat: 23g | Saturated Fat: 15g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 81mg | Sodium: 566mg | Potassium: 421mg | Fiber: 3g | Sugar: 29g | Vitamin A: 574IU | Vitamin C: 0.1mg | Calcium: 475mg | Iron: 3mg