In a 12 inch to 14 inch saute pan, heat oil over medium heat until just smoking. Add garlic and toast light brown. Add shrimp and cook 2 to 3 minutes, until bright red. Turn shrimp over and add lemon juice, limoncello and wine and cook 1 minute.
Meanwhile, grill or toast the bread and place 1 slice on each plate. Divide the shrimp over the bread. Add chives to pan and divide sauce over shrimp. Sprinkle with lemon zest and serve immediately.
Recipe courtesy of Mario Batali