2 (3 oz.) pkgs. Jello
1/2 tsp. lemon flavoring
1 c. salad dressing or mayonnaise
1 tbsp. finely minced onion
2 c. boiling water
1 tbsp. vinegar
1 med. cucumber, peeled & grated

Dissolve Jello in boiling water, add flavoring and let stand until congealed a little. Combine remaining ingredients. Add to the Jello mixture. Place in a mold or in 8"x8" pan. Chill until firm.