3 best ever browned butter frosting Recipes

cookies, vinegar, evaporated milk, butter, softened, brown sugar, eggs, vanilla extract, white flour, baking soda, baking powder, salt, diced pecans or walnuts or cashews (optional), browned butter frosting, butter (do not use margarine), powdered sugar, half-and-half or whole milk (may need a bit more), vanilla extract

butter, sugar, eggs, lightly beaten, vanilla, unsweetened cocoa, flour, salt, butter, vanilla, powdered sugar, milk, unsweetened cocoa, water