3 buttermilk pecan brownies frosting Recipes

all-purpose flour, sugar, baking soda, salt, margarine or 1 cup butter, water, unsweetened cocoa powder, eggs, buttermilk, vanilla, butter or 1/4 cup margarine, unsweetened cocoa powder, buttermilk, powdered sugar , sifted, vanilla, pecans, coarsely chopped (optional)

butter, sugar, brown sugar, eggs, buttermilk, vanilla, flour, baking soda, chopped toasted pecans, semisweet chocolate, melted, cinnamon, chocolate curls (optional), sour cream, butter, softened, vanilla, powdered sugar