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Peanut Butter Cookie in a Cup Mug Cake

Close-up of a peanut butter cookie in a cup with warm lighting and minimal background.

A quick and easy peanut butter cookie mug cake that you can make in just minutes. Perfect for a single serving dessert or snack with the rich flavor of peanut butter and a soft, chewy texture.

Ingredients

Scale

3 tablespoons creamy peanut butter
1 tablespoon granulated sugar
1 tablespoon brown sugar, packed
1/4 teaspoon baking powder
1/4 teaspoon vanilla extract
1 large egg yolk
2 tablespoons all-purpose flour
Pinch of salt

Instructions

In a microwave-safe mug (at least 8 oz capacity), add 3 tablespoons of creamy peanut butter.
Add 1 tablespoon granulated sugar and 1 tablespoon packed brown sugar to the mug.
Add 1/4 teaspoon baking powder and a pinch of salt to the mug.
Add 1/4 teaspoon vanilla extract and 1 large egg yolk to the mug.
Add 2 tablespoons all-purpose flour to the mug.
Mix all the ingredients thoroughly with a spoon until a smooth batter forms.
Microwave the mug on high for 60 seconds. The cookie cake should be set but still soft in the center.
Carefully remove the mug from the microwave (it will be hot). Let it cool for 2 minutes before eating.
Enjoy your peanut butter cookie mug cake directly from the mug.