Spiced Yogurt and Mayo White Sauce

1 jalapeno
1/2 cup plain yogurt
1/2 cup mayonnaise
1 tsp capers
1/2 tsp crushed mexican oregano
1/2 tsp ground cumin
1/2 tsp crushed dried dill
1/4 tsp cayenne
fresh lime juice
white pepper to taste

Mix yogurt and mayo in a bowl. Gradually stir in lime juice until a slightly runny consistency is achieved. Finely dice the jalapeno and caper and add to the sauce. Add the spices. If sauce is too thick add more lime juice.

Serve with fish tacos