Old School Peanut Butter Cake

First, start by preheating the oven to 350°F (180°C). Line a 9x13-inch baking pan with non-stick baking paper and some cooking spray.
Then, make sure that all of your ingredients are measured out before starting the baking process.
First, combine the butter and water in a medium saucepan and bring them to a boil. Once the butter has been completely melted, remove the mixture from the heat and whisk in the peanut butter and vegetable oil. Allow the mixture to cool for about 10 minutes.
Next, whisk in the eggs one at a time. Make sure to whisk each until they are fully incorporated before adding another. Finally, whisk in the vanilla extract or essence.
Now, in a large mixing bowl, combine all of the dry ingredients. Make sure they are lump-free and well mixed.
Then, whisk the dry ingredients into the wet mixture base. Whisk the ingredients together until they are just combined.
Once your old-school peanut butter cake batter has been made, pour it into your lined baking pan.
Bake the peanut butter cake for 40-45 minutes or until the toothpick comes out clean. Once baked, allow the cake to cool slightly on a wire rack.
While your cake is cooling, you can make your peanut butter frosting. First, combine the butter, peanut butter, and buttermilk in a medium saucepan and bring it to a boil.
Then, remove it from the heat and whisk in the vanilla extract and powdered sugar. Only add about 1 cup of sugar at a time to ensure it doesn't form any lumps.
Once the sugar has been added, place the mixture back onto a low heat and gently warm it again.
You can pour your warm peanut butter frosting over your still-warm cake. The frosting will set quickly, so don't work slowly and ensure it remains warm before you pour it.
Finally, while the frosting is still soft, spread the roasted peanuts over the cake and serve.

Old School Peanut Butter Cake

Equipment

Ingredients

For the cake

For the frosting

Instructions