Straightforward Peanut Butter Sheet Cake

This Peanut Butter Sheet Cake is the stuff of peanut butter lovers’ goals! Fulfill your PB and dessert cravings in a single fell swoop with this moist and tender cake topped with heavenly peanut butter marshmallow icing.

Need much more PB dessert concepts? Strive these Peanut Butter Blossom Cookies or these straightforward Peanut Butter Balls.

A slice of moist peanut butter sheet cake is lifted with a spatula.

Straightforward Peanut Butter Cake with Peanut Butter Icing

At any time when I’m craving peanut butter (which is commonly, let’s be trustworthy), this heavenly peanut butter sheet cake is my go-to. It checks all of the containers wanted to fulfill the craving: peanut-y, creamy, simply candy sufficient, and completely smooth and moist!  This cake has peanut butter taste with out being overwhelming, dry or crumbly like some peanut butter desserts might be. Together with an extremely tender texture that melts in your mouth it’s topped with creamy marshmallow peanut butter frosting. Everybody at all times raves concerning the frosting! 

Anyplace it goes, this straightforward cake is successful with peanut butter lovers, and nearly everybody else. Bake it, freeze it, or get pleasure from it recent for days! Snacking muffins don’t get extra delicious than this.

Slices of peanut butter sheet cake with peanut butter frosting.

What You’ll Want

  • Peanut Butter: You should use creamy peanut butter, or crunchy peanut butter for added texture! The selection is yours. You’ll want it for each the cake in addition to the marshmallow peanut butter icing.
  • Flour: All-purpose
  • Buttermilk: That is the not-so-secret ingredient for cake that’s tremendous moist and tender! Plus, the flavour provides a little bit of tang. No buttermilk within the fridge? Take a look at my buttermilk substitute tutorial.
  • Butter: Unsalted or salted, minimize into cubes, plus further for the icing.
  • Eggs: Two giant eggs deliver the proper texture to this sheet cake.
  • Vanilla: Pure vanilla extract is finest for taste, however imitation may also work in a pinch.
  • Vegetable Oil: Or one other impartial cooking oil, like canola.
  • Evaporated Milk: Provides further sweetness and smoothness to the icing.
  • Mini Marshmallows: The bottom for the scrumptious marshmallow and peanut butter icing!
  • Sugar
  • Baking Soda
  • Salt

Learn how to Make Peanut Butter Sheet Cake

This cake is ideal for serving a crowd when it’s ready in a sheet pan. Because of this, I like bringing it to potlucks and household gatherings! You too can make your peanut butter cake in a 9×13 pan (extra particulars in my suggestions part beneath). In the intervening time, right here’s an outline of the way to make the proper sheet cake:

Peanut butter cake batter being whisked.

Combine the Batter: Put aside the flour and dry components in a single bowl, and the buttermilk and moist components in one other. Subsequent, you’ll prep the peanut combination by bringing water and butter to a boil, and stirring within the peanut butter and oil. Add the peanut combination to the flour combination, adopted by the buttermilk combination, whisking as you go.