A reliable and easy sugar cookie frosting recipe that hardens flawlessly with a smooth, crisp finish, perfect for decorating cookies for any occasion.
Use light corn syrup to help the frosting harden with a glossy finish without cracking. Avoid applying frosting too thickly to prevent cracking. Let frosting set at room temperature for at least 2 hours or overnight for best results. Gel food coloring is preferred to avoid thinning the frosting. For vegan version, use vegan butter, plant-based milk, and substitute corn syrup with maple syrup (frosting may be softer).
Keywords: sugar cookie frosting, no-fail frosting, cookie decorating, easy frosting recipe, hardening frosting, holiday cookies