2-Minute Peanut Butter Cake (Print Version)

Fluffy peanut butter mug cake made fast with simple pantry ingredients and microwave ease.

# 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

# How to Make It:

01 - In a large microwave-safe mug, stir together peanut butter and melted butter until smooth.
02 - Add the egg, milk, and vanilla extract to the mug; whisk with a fork until fully blended.
03 - Stir in flour, sugar, baking powder, and salt until just combined without overmixing.
04 - Cook on high power for 60 to 75 seconds until risen and the center is set; avoid overcooking.
05 - Allow to cool for 1 to 2 minutes before serving directly from the mug.

# Additional Tips::

01 -
  • It takes less time to make than it does to find your keys in the morning.
  • You can eat it straight from the mug, which means zero extra dishes to wash.
  • The texture is soft and tender, somewhere between a brownie and a sponge cake.
  • It satisfies a peanut butter craving without needing a whole batch of cookies.
02 -
  • Do not microwave for more than 75 seconds or the cake will turn rubbery and dry. Every microwave is different, so start with 60 seconds and add time if needed.
  • Use a mug that holds at least 12 ounces. I learned this the hard way when batter bubbled over the sides of a tiny mug and made a mess.
  • Stir the batter gently. The first time I made this, I beat it like I was making a regular cake and ended up with something chewy instead of fluffy.
03 -
  • If you want a fluffier texture, separate the egg and beat the white until foamy before folding it in at the end. It adds an extra 30 seconds but makes a noticeable difference.
  • For a richer flavor, use dark brown sugar instead of granulated. It adds a hint of molasses that pairs beautifully with peanut butter.
  • Always let the cake cool for at least one minute. The texture firms up as it cools, and you'll avoid burning your mouth on molten peanut butter.
Go Back