3 oreo oreo buttercream Recipes

cake flour, baking powder, salt, unsalted butter, at room temperature, sugar, eggs, at room temperature, buttermilk, at room temperature, vanilla extract, oreo cookies (halves, with cream filling attached), butter, room temperature, vegetable shortening, powdered sugar (1 lb), butter flavoring or 1/2 tsp vanilla extract, oreo cookies, finely crushed, oreo cookies, cut in half, for garnish

sugar, meringue powder, egg whites, corn syrup, cream of tartar, butter, room temperature, shortening, vanilla extract, vanilla bean , seeds scraped, chocolate sandwich cookies, crushed (recommended : oreo)