½cupnonfat Greek yogurt(can use low-fat or full fat)
½cuplow-fat mayonnaise(can use regular)
½cupbuttermilk(low-fat is fine)
½teaspoonapple cider vinegar
½teaspoonDijon mustard
¼teaspoonsalt
¼teaspoonblack pepper
¼teaspoongarlic powder
¼teaspoononion powder
⅛teaspooncelery seed
Instructions
Place all ingredients in a mason jar, cover with a lid, and shake until blended. Store in the refrigerator for a week (check the expiration dates on your yogurt, mayo and buttermilk to make sure they'll stay fresh for that long.)
Notes
If you don't have buttermilk, you can make a substitute by using half a tablespoon of white vinegar or lemon juice added to half a cup of milk.