3/4 cup mayonnaise
1/2 cup buttermilk
2 T powdered cultured buttermilk blend*
2 T finely chopped fresh parsley
2 T finely chopped celery leaves
1 1/2 t prepared mustard
3/4 t onion powder
1/4 t dried dillweed
healthy grind of black pepper
1 small clove garlic, crushed to a paste with salt
lemon juice or vinegar to taste
Stir together, adjust thickness to taste by adding more buttermilk or mayo.
*Saco brand powder can be found in the baking aisle.