1 teaspoon baking soda
1/2 teaspoon salt
2 cups granulated sugar
1 cup butter (2 sticks), softened I use salted butter
1/4 cup unsweetened cocoa powder
1 cup water
1 teaspoon vanilla extract
1/2 cup sour cream
2 large eggs, lightly beaten
Peanut Butter Frosting:
1 cup creamy peanut butter
5 tablespoons butter (I use salted)
1 cup powdered sugar
1/3 cup heavy cream
1/2 teaspoon vanilla extract
pinch of salt
Preheat oven to 350 degrees and spray a 18x13-inch pan with baking spray with flour. Or you can butter and flour the pan. Whisk together flour, baking soda, salt, and sugar in a large bowl. Set aside. Add butter, cocoa powder, and water to a medium saucepan. Heat until mixture comes to a boil. Stir well and pour over flour mixture. Stir into flour mixture. Add vanilla, sour cream, and eggs. Mix until evenly combined. Transfer batter to prepared pan and bake for 20 to 25 minutes. Let cool. To make frosting, use a hand-held or stand electric mixer to beat peanut butter and butter until creamy. Add remaining ingredients and beat on high for 2 to 3 minutes. Spread frosting on cake.