Peanut Butter Dream Sheet Cake

Step 1 -Preheat the oven to 350 degrees F.

Step 2 -Coat a rimmed sheet pan with nonstick cooking spray.

Step 3 -In a large bowl, add the flour, the sugar, the salt, and the baking soda and whisk to combine.

Step 4 -In a saucepan over high heat, add 1/2 cup of the peanut butter, the water, and 2 sticks of the margarine and bring to a boil. Cook, while stirring, until it is melted and well-combined.

Step 5 -Pour the peanut butter mixture into the flour mixture and stir to combine.

Step 6 -Add the eggs and 1/2 cup of the buttermilk to the cake batter and stir to combine.

Step 7 -Evenly pour the cake batter into the prepared sheet pan and bake until a toothpick inserted into the center comes out clean, about 20-25 minutes.

Step 8 -Transfer the sheet pan to a wire rack and let the cake cool slightly.

Step 9 -In a clean saucepan over high heat, add the remaining margarine, the remaining peanut butter, and the remaining buttermilk and bring it to a boil, stirring to combine.

Step 10 -Transfer the saucepan to a wire rack. Add the vanilla and the confectioners' sugar to the frosting mixture and stir to combine.

Step 11 -Evenly pour the hot frosting over the cake, then let it cool completely.

Step 12 -Cut the cake into bars and serve.