Ninfa's Green Sauce

3 med. size green tomatoes, coarsely chopped
4 tomatillas, coarsely chopped
1-2 jalapeno peppers, stems removed and coarsely chopped
3 small cloves garlic
3 med. ripe avocados
4 sprigs cilantro
1-2 tsp. salt
1 1/2 c. sour cream

Place green tomatoes, tomatillas, jalapeno peppers, and garlic in a saucepan, bring to a boil, lower heat; simmer 15 minutes or until tomatoes are soft. Remove from heat, cool slightly.
Peel, seed and slice avocados; set aside.
In food processor, place part of the green tomato mixture with part of the avocados, cilantro and salt, cover. Process until smooth, turn into large bowl. Repeat with remaining green tomato mixture and avocado. Add to mixture in bowl. Stir in sour cream; cover with plastic wrap. Chill
Makes: 5-6 cups
Note: can use imitation sour cream also.