SHRED cheese; thoroughly MIX together cheese, margarine, salt, nuts and onion; ADD flour; MIX well.
SEPARATE dough into two equal portions; ROLL each portion into a long roll about 1 1/2" in diameter.
WRAP rolls separately in waxed paper; REFRIGERATE overnight or until thoroughly chilled.
Using a very sharp knife, CUT rolls in slices about one-eighth inch thick.
PLACE slices on lightly greased baking sheet; BAKE in oven preheated to 350 Ffor 10 minutes or until lightly browned.
SERVE hot or cold.
May substitue pecans for walnuts Wafers will keep for several days, tightly covered, in refrigerator.
Per Serving (excluding unknown items): 322 Calories; 25g Fat (69.9% calories from fat); 11g Protein; 14g Carbohydrate; 1g Dietary Fiber; 30mg Cholesterol; 443mg Sodium. Exchanges: 1 Grain(Starch); 1 Lean Meat; 0 Vegetable; 4 1/2 Fat.