2 1/2 c. whole wheat flour
1/2 c. non-fat dry powdered milk
1 tsp. sugar
1 tsp. salt
6 tbsp. butter
1 egg

Mix ingredients with about 1/2 cup water. Knead for 3 minutes. Dough should form a ball. Roll to 1/2 inch thick and cut into dog bones. Bake for 30 minutes at 350 F.

Variations: Add 3 tablespoons of liver powder, or powdered chicken or beef bouillon or dried soup greens, or dried soup mix.