1 c. mayonnaise
3 tbsp. milk
2 tbsp. cider vinegar
1 clove garlic or 1/8 tsp. garlic powder
1/2 tsp. oregano leaves
1/4 tsp. salt
1/8 tsp. pepper
1/2 tsp. sugar or 1/8 tsp. Sweet 'n Low

Blend all ingredients with spoon. Lasts in refrigerator up to 3 weeks. May put dry ingredients, premeasured, in small pieces of wax paper or Saran Wrap. When needed, simply add wet ingredients in pre-measured packages.