Guacamole

3 ripe avocados, mashed with fork
2 tomatoes, chopped finely 
1 Tbsp fresh cilantro 
juice of 1/2 lemon or 1 lime 
1/2 purpose onion, chopped finely 
1 tsp black pepper
1/2 tsp salt (optional)
1 to 2 finely chopped jalepenos 
1/4 cup plain unsweetened yogurt

Combine.

Notes:

After cutting avocado in half, remove pit by hitting it with the
sharp edge of a knife and twist it out.

Fold in yogurt last.

Place one pit in center of the surface of the guacamole to prevent
browning if it needs to stand for a while.