Why Is My Coconut Pecan Frosting Grainy?
Your coconut pecan frosting may be grainy because the sugar in the recipe did not fully dissolve or the mixture was cooked at too high of a temperature, causing the sugar to crystallize. To avoid grainy frosting, make sure to stir constantly while cooking and use a low to medium heat. It may also help to sift the powdered sugar to ensure it is free of lumps before adding it to the ingredients.