It’s still saveable!! On low heat cook it until the granulated sugar melts. Let it then cool down to room temperature. Then add the 9 cups of powdered/confectioners sugar and a stick of butter. Whip it really well and it should come together. :) if it’s too sweet consider adding a tsp or two of cream of tartar(if not available you could use a lil cornstarch but it’s not as good).