Grilled Fish in a Garlic & Lemon Sauce 1/2 cup olive oil -- green fruity variety 1 cup lemon juice -- freshly squeezed 6 cloves garlic -- chopped finely 1/2 cup cilantro -- chopped 6 pieces Bass -- or other firm fish 4 ounces butter -- unsalted 1/4 cup red onion -- chopped 2 small green chili pepper -- finely minced chopped lemon wedges and cilantro sprigs salt and pepper -- to taste Mix together olive oil, 1c lemon juice, slivered garlic, 1/4 cup chopped cilantro, salt and pepper. Add fish fillets and marinate for at least one hour or as long as overnight. To prepare garlic sauce. In a frying pan over medium heat, melt two tablespoons butter and saute onion, chilies, and minced garlic until soft,stirring often.Add tomatoes and remaining lemon juice. Cook for 10 minutes, stirring occasionally. Remove from heat and season to taste. Stir in 1/4 cup chopped cilantro. Slowly stir in remaining butter until melted. Drain marinade from fish. Barbecue fillets over low glowing coals (or broil if desired), turning only once.Be careful not to overcook. Remove to a warm serving platter and top with garlic sauce. Garnish with lemon slices and cilantro sprigs.