You can try this recipe
5 tbsp. flour
1 c. pareve milk
1 c. shortening
1 c. sugar
1/2 tsp. salt
1 tsp. vanilla
Cook flour and milk until thick, stir constantly. Cool. Cream together shortening, sugar, salt and vanilla. Add flour mixture. Beat well until very smooth and not grainy. Drop by tablespoons on devil dogs. This recipe also freezes well.
Comment on March 12, 2009: marshmallow fluff is found in all supersol supermarkets in Israel