3/4 c. olive oil
3 cloves garlic, chopped
2 onions, coarsely chopped
2 lb. shrimp, peeled to cleaned
2 onions, sliced thin
1/2 c. vinegar
1 1/2 tsp. salt
1/4 tsp. dry mustard
1/2 tsp. pepper
2 pickled jalapeno peppers cut in strips

Heat 1/4 cup oil in a fry pan. Add garlic and chopped onions and saute until golden, stirring frequently. Add shrimp and saute until just done (about 7 minutes). Remove from heat and cool.

Combine sliced onion, remaining olive oil, vinegar, salt, mustard, pepper and chilies in a bowl. Add shrimp, toss and coat shrimp with marinade. Marinate 24 hours and serve cold.