Aunt Chilada's Margarita Shrimp

Source: Chef Jessie Gonzales, Aunt Chilada's - Phoenix, Arizona

2 cups yellow onions, finely diced
1/2 cup garlic, chopped
1 1/4 cups lime juice
3 ounces triple sec
5 ounces tequila
4 ounces butter
1/2 tablespoon coriander, ground
3 tablespoons fresh cilantro, medium diced
1/2 cup poblano peppers, medium diced
1 1/2 tablespoons cornstarch
1 ounce water
36 medium shrimp, saut ed in butter

Saut onions and garlic until tender. In saucepan, add lime juice, triple sec and tequila and simmer for about 5 minutes. Melt butter slowly and stir in ground coriander. Combine all ingredients in saucepan and thicken with cornstarch and water. Top cooked shrimp with the mixture.