Indulge in the ultimate dessert for peanut butter lovers with this M&M’s Peanut Butter Cake with Peanut Butter Frosting! A rich, moist peanut butter cake topped with creamy peanut butter frosting and crunchy M&M’s creates the perfect balance of flavors. Ideal for birthdays, celebrations, or simply satisfying your sweet tooth, this cake is sure to impress.
For the Cake:
1 ½ cups all-purpose flour (190 g)
1 cup granulated sugar (200 g)
½ cup packed brown sugar (100 g)
¾ cup unsweetened cocoa powder (75 g)
1 teaspoon baking soda
½ teaspoon baking powder
½ teaspoon salt
½ cup creamy peanut butter (125 g)
¾ cup vegetable oil (180 ml)
½ cup milk (120 ml)
2 large eggs
2 teaspoons vanilla extract
1 cup M&M’s (170 g)
For the Frosting:
1 cup creamy peanut butter (250 g)
4 cups powdered sugar (460 g)
½ cup unsalted butter, softened (115 g)
¼ cup milk (60 ml)
Preheat the oven: Preheat your oven to 350°F (175°C) and grease two 9-inch round cake pans.
Mix the dry ingredients: In a large bowl, whisk together the flour, granulated sugar, brown sugar, cocoa powder, baking soda, baking powder, and salt.
Prepare the wet ingredients: In a separate bowl, combine peanut butter, vegetable oil, milk, eggs, and vanilla extract. Mix until smooth.
Combine wet and dry ingredients: Gradually add the wet ingredients to the dry ingredients and mix until fully combined.
Add the M&M’s: Gently fold in the M&M’s, reserving a few for decoration.
Bake the cakes: Divide the batter evenly between the prepared cake pans. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out clean.
Cool the cakes: Allow the cakes to cool in the pans for 10 minutes, then transfer to wire racks to cool completely.
Make the frosting: In a large bowl, beat together the creamy peanut butter, softened unsalted butter, and powdered sugar until smooth and creamy.
Adjust consistency: Gradually add milk until the frosting reaches your desired consistency.
Frost the cake: Once the cakes have cooled completely, spread a layer of frosting on top of one cake layer.
Stack the layers: Place the second cake layer on top and frost the top and sides of the entire cake.
Decorate: Decorate the top of the cake with the reserved M&M’s for a fun and colorful touch.
Flour measurement: For accuracy, spoon the flour into the measuring cup and level it off to avoid a dense cake.
Storing the cake: Store leftovers in an airtight container at room temperature for up to 3 days.