Combine yogurt and 1/4 tsp salt. Place yogurt in strainer and drain over a bowl for 3 hours.
Place yogurt and feta in a bowl. Mash ingredients together to obtain a smooth paste. Add garlic, cayenne, paprika, olive oil and black pepper and mix well. Serve with pita bread slices. 6 servings.
From Tapas to Meze by Joanne Weir, Crown Publishers 1994 (recipe modified slightly).