Ultimate Buttercream Frosting. If you are making a buttercream intended for writing use light corn syrup as your liquid. Cool to room temperature.

Then you can add a little bit of cream a little at a time until you reach the desired consistency. Thin consistency is best for cake frosting as well as piping lines and letters. 3 cups 306 grams powdered sugar sifted.
Heavy Cream or milk Vanilla Extract.
Step 3 Beat both mixtures together on high speed until fluffy and smooth. Directions Step 1 In small saucepan cook flour and milk until it forms a ball stirring constantly. Add vanilla and beat until. Cool to room temperature.