2-Minute Peanut Butter Cake (Printable)

Single-serve mug cake with creamy peanut butter, ready in minutes using common pantry ingredients.

# What You'll Need:

→ Wet Ingredients

01 - 2 tablespoons creamy peanut butter
02 - 1 tablespoon unsalted butter, melted
03 - 1 large egg
04 - 2 tablespoons milk (dairy or non-dairy)
05 - 1/2 teaspoon vanilla extract

→ Dry Ingredients

06 - 3 tablespoons all-purpose flour
07 - 2 tablespoons granulated sugar
08 - 1/4 teaspoon baking powder
09 - Pinch of salt

# Directions:

01 - In a large microwave-safe mug, mix the creamy peanut butter and melted unsalted butter until smooth.
02 - Add the egg, milk, and vanilla extract to the mug and whisk with a fork until fully blended.
03 - Gently fold in the all-purpose flour, granulated sugar, baking powder, and a pinch of salt until just combined; avoid overmixing.
04 - Cook the mixture on high power for 60 to 75 seconds, until the cake has risen and the center is set. Avoid overcooking to maintain fluffiness.
05 - Allow the mug cake to cool for 1 to 2 minutes before eating directly from the mug.

# Expert Tips:

01 -
  • Ready in less time than it takes to find the ice cream scoop.
  • No mixing bowls, no cleanup mess, no regret about the dishes.
  • Rich peanut butter flavor that doesn't taste like a shortcut.
  • Perfect for one person without feeling lonely or sad about portion control.
02 -
  • Overmixing the dry ingredients is the quickest way to end up with a dense, rubbery cake instead of a fluffy one—stir until barely combined and call it done.
  • Your microwave's power matters more than you think; if yours runs hot, start at 50 seconds and check before adding more time.
  • Cold peanut butter straight from the fridge will make the batter lumpy and uneven, so either let it sit out for a minute or use creamy peanut butter that's naturally softer.
03 -
  • Invest in a 12-ounce or larger microwave-safe mug because this cake rises up significantly and you don't want it overflowing all over your microwave.
  • If you're making this regularly, measure out the dry ingredients into small containers ahead of time so you literally just have to dump them in when a craving hits.
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