Back to Recipe
Yellow Mug Cake

Yellow Mug Cake

This quick and easy yellow mug cake is a simple single-serving microwavable dessert with a classic vanilla flavor and buttercream frosting.

Author: Kelsey Smith

Meal Type: Vegetarian

Cuisine: American

Difficulty: EASY

Prep. Time: 5 minutes

Cook Time: 1 minute

Total Time: 6 minutes

Servings: 1 serving

Calories: 958 kcal per serving

Ingredients

  • 2 tablespoon - unsalted butter
  • 1 - egg yolk
  • 2 tablespoon - milk
  • ½ teaspoon - vanilla extract
  • ¼ cup - all-purpose flour
  • 2 tablespoon - granulated sugar
  • 1 teaspoon - baking powder
  • pinch - kosher salt
  • ½ - Cupcakes

Instructions

  1. Add the butter to the mug and microwave for 20 to 40 seconds or until melted.
  2. Add the egg yolk, milk, and vanilla extract, mixing the wet ingredients thoroughly with a fork to combine.
  3. Stir in the flour a little bit at a time, then mix in the remaining dry ingredients: sugar, baking powder, and salt.
  4. Microwave for about 70 seconds (1 minute, 10 seconds).* This will take more or less time depending on your microwave's wattage (anywhere from 60 to 90 seconds). If the cake is not fully cooked, microwave in 10-second increments. It is normal for the cake to rise above the rim of the mug as it cooks and then sink slightly. Do not open the microwave too soon or the cake will sink significantly.
  5. Allow the cake to cool to room temperature before topping it with frosting, powdered sugar, or whipped topping (optional).

Nutrition

Energy: 958 kcal | Total Fat: 51 g | Saturated: 23 g | Trans: 0 g | Unsaturated: 0 g | Cholesterol: 282 mg | Total Carbs: 118 g | Fiber: 4 g | Sugars: 73 g | Proteins: 12 g | Sodium: 584 mg | Polyunsaturated: 7 g | Monounsaturated: 17 g

©2026 OnlineCook LLC