Start by measuring all the filling ingredients using measuring cups and spoons.
Place the softened cream cheese, egg, and vanilla extract into a glass mixing bowl.
Use a hand mixer to beat the wet ingredients until they’re well blended.
Add the powdered sugar and flour to the bowl.
Keep mixing with the hand mixer until everything is incorporated.
Mix until the filling is smooth, creamy, and ready to use in your recipe. Want to see it in action? Try it in my Red Velvet Bundt Cake with Chocolate Hearts!