Pour hot water or juice over margarine. Add powdered milk, salt, sugar, and egg. Gradually add flour, about 1/2 C. at a time till you have a stiff dough. Knead 3-4 minutes. Roll out 1/2" thick and cut into shapes. Bake in
325 degree oven for 50 minutes.
P.S. I use a food processor with plastic blade.