Dessertscookiesandcups5.0
Peanut Butter Sheet Cake
The stuff of peanut butter lovers’ dreams! You'll love serving up a slice of this dreamy Peanut Butter Sheet Cake topped with peanut butter marshmallow icing. Perfect for gatherings and potlucks!
👥 20 Servings⏱️ Prep & Cook: 40 min⏳ Prep: 15 min🔥 Cook: 25 min👤 Shelly📖 cookiesandcups
🥘 Ingredients
Check off ingredients as you prepare them:
🍳 Cookware
- pan
- oven
- bowl
- whisk
- saucepan
- spatula
📝 Preparation Steps
1
Make the Cake
2
Preheat your oven to 350°F. Line a 15x10x1 (jelly roll-style) pan with parchment paper. Coat with nonstick spray and set aside.
3
In a large bowl whisk together the flour, sugar, baking soda, and salt. Set aside.
baking soda1 teaspoon
4
In a small bowl whisk together the eggs, vanilla, and buttermilk. Set aside.
large eggs2
5
Place water and butter in a small saucepan over medium heat. Bring to a boil and remove from the heat. Stir in the peanut butter and oil, mixing until combined. Add this into the flour mixture and whisk until smooth. Then whisk in the buttermilk mixture until evenly blended.
water1 cupcup buttermilk1/2cup butter, cut into cubes3/4cup peanut butter (crunchy or creamy)1/2butter2 tablespoonscup peanut butter (creamy or crunchy)1/3
6
Pour the batter into the prepared pan and bake for 20 – ⏱️ 25 minutes until the center is set and a toothpick inserted comes out clean.
7
Make the Icing
8
Stir together the evaporated milk, granulated sugar, salt, and butter in a medium sauce. Bring to a boil over medium heat, and boil for ⏱️ 2 minutes stirring constantly. Remove from the heat and stir in the peanut butter, marshmallows, and vanilla until combined and the marshmallows are melted.
granulated sugar2 cupscup granulated sugar2/3cup buttermilk1/2cup butter, cut into cubes3/4cup peanut butter (crunchy or creamy)1/2butter2 tablespoonscup peanut butter (creamy or crunchy)1/3
9
Pour the icing onto the warm cake, spreading out evenly using an offset spatula.
10
Allow the cake to cool completely before slicing and serving.
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