I never measure because I usually just make up enough to use for dinner but here is my best guesstimate.
3/4 cup mayo, light mayo, plain yogurt or white salad dressing (the kind that is usually sold next to the mayo at the grocery store)
1 Tbsp. lemon juice
1 1/2 Tbsp. dill pickle relish or minced dill pickles
Salt and Pepper to taste
Combine in a small bowl. Blend well. Keep refrigerated.
Will keep for 3 days.