Pastry chef set the electric mixer mixing egg white and sugar until it is glossy peak and stiff peak, preparing meringue buttercream, commercial kitchen setting close up shot

appliance mixer bakeware chef culinary mix kitchen meringue machine recipe buttercream bake batter patissier homemade whisk patissiere flour baker commercial pastry dairy bakery whip mixture butter white dessert cream make ingredient spin egg sweet icing peak food flavor sponge sugar cheese cake frost beat swiss electric stiff chiffon bench