Coffee Cake in a Mug

Ingredients

• 1 tablespoon butter
• 2 teaspoons white sugar
• 0.25 cup all-purpose flour
• 1 tablespoon applesauce, or as needed
• 0.125 teaspoon baking powder
• 2 drops vanilla extract, or to taste
• 1 pinch salt
• 2 teaspoons all-purpose flour
• 1 teaspoon butter
• 1 teaspoon brown sugar
• 0.25 teaspoon ground cinnamon

Steps

1. Heat 1 tablespoon butter in a microwave-safe mug until softened, about 10 seconds. Stir white sugar into butter until dissolved. Mix 1/4 cup flour, applesauce, baking powder, vanilla extract, and salt into butter-sugar mixture until batter is smooth.
2. Mix 2 teaspoons flour, 1 teaspoon butter, brown sugar, and cinnamon together in a bowl using your hands until the texture of lumpy sand is reached; sprinkle over batter.
3. Cook in the microwave until coffeecake appears to be barely set, 50 to 80 seconds. Cool before eating.