Fish Taco Sauce
1/2 cup plain yogurt
1/2 cup mayonnaise
1 lime, juiced
1 jalapeno pepper, minced
1 teaspoon minced capers
1/2 teaspoon dried oregano
1/2 teaspoon ground cumin
1/2 teaspoon dried dill weed
1 teaspoon ground cayenne pepper
from http://allrecipes.com/Recipe/Fish-Tacos/Detail.aspx