White cake recipe no milk
1/4 cup chilled dairy-free margarine
1/4 cup chilled shortening
1-3/4 cup powdered sugar
1 tsp. vanilla
Mix chilled margarine and chilled shortening with a mixer, in a chilled bowl. Add vanilla. Slowly add powdered sugar. Put in frig to chill before icing, if necessary.
You can make this soy-free by using soy-free margarine like Earth Balance. They make a soy margarine, too, so make sure you get the right one
If you want frosting from a tub, Pillsbury Creamy Supreme has been dairy-free but does contain soy. It comes in flavors of Chocolate Fudge, Classic White, and Cream Cheese. Be sure to check labels because ingredients can change!