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Moist cinnamon mug cake with a swirl of cream cheese frosting and a dusting of cinnamon, served in a mug, displaying a golden-brown crust and gooey center.

Cinnamon Mug Cake

Warm, fluffy, and fragrant with cinnamon, this mug cake delivers a bakery-worthy treat in just 90 seconds.
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Prep Time 5 minutes
Cook Time 2 minutes
Total Time 7 minutes
Servings 1
Calories 350 kcal

Ingredients
  

  • 3 tbsp all-purpose flour
  • 2 tbsp light brown sugar
  • 0.5 tsp ground cinnamon
  • 0.25 tsp baking powder
  • 1 pinch salt
  • 2 tbsp unsalted butter, melted
  • 3 tbsp milk (preferably whole)
  • 0.25 tsp vanilla extract

Instructions
 

  • Mix dry ingredients: In your mug, combine 3 tbsp flour, 2 tbsp brown sugar, 1/2 tsp cinnamon, 1/4 tsp baking powder, and a pinch of salt. Whisk with a fork until no lumps remain.
  • Add wet ingredients: Pour in 2 tbsp melted butter, 3 tbsp milk, and 1/4 tsp vanilla. Stir gently with a fork until just combined—about 15 strokes. Do not overmix. The batter should be smooth but not thin.
  • Sprinkle the top: Dust a generous pinch of cinnamon over the batter (and a tiny bit of brown sugar if you want a crunchy crust).
  • Microwave: Place the mug in the center of the microwave. Cook on high for 90 seconds. The cake will rise above the rim—this is good. It should look slightly set in the center with no visible wet batter. (Microwaves vary; check at 75 seconds if yours is very powerful.)
  • Rest and garnish: Let the mug cake cool in the microwave for 1 minute—it continues to steam and set. Then remove, let cool another 30 seconds, and add your chic toppings.