1 lemon zest and juice
2 lime zest and juice
1 T. rice wine vinegar
2 T. shallots sliced into rings
1 T. sugar substitute
1/4 tsp. crushed red pepper
2 4oz. fresh Tuna Steaks

Using citrus zester, remove peels from citrus fruits, careful not to remove any white pith. Bring 1 C. water to boil and drop zested peels into water for 30 sec. Drain and rinse w/ cold water. Squeeze juice from lemon and lime; combine with vinegar, shallots, artificial sweetener, and crushed pepper. Brush marinade on Tuna, and grill until desired doneness, basting occasionally. Remove form grill top w/ remaining mixture and serve.