1/2 c. balsamic vinegar
3/4 c. olive oil
Few drops hot pepper sauce
1/4 c. minced fresh basil (or 1/8 c. dried)
Freshly ground pepper to taste

Use with a firm fleshed fish (swordfish, mahi mahi, salmon steaks). Whisk together the vinegar, oil and hot pepper sauce. Stir in the basil. Pour over fish and marinate about 45 minutes, turning once, before grilling.