In large bowl, combine rolled oats, margarine and boiling water; let stand 10 minutes. Stir in cornmeal, sugar, bouillon, milk, cheese and egg; mix well. Lightly spoon flour into measuring cup; level off. Add flour 1 cup at a time, mixing well after each addition to form a stiff dough.
On floured surface, knead in remaining flour until dough is smooth and no longer sticky, 3 to 4 minutes. Roll or pat out dough to 1/2 inch thickness, cut with bone shaped cookie cutter. Place 1 inch apart on greased cookie sheets. Bake at 325 degrees for 35 to 45 minutes on until golden brown. Cool completely. Store loosely covered. Makes 3 1/2 dozen large dog biscuits or 8 dozen small dog biscuits.