1. Heat olive oil and butter in a large skillet over medium heat. Add garlic, 1/2 teaspoon salt and a pinch of red pepper flakes. Cook 2 minutes, careful not to let the garlic burn. Remove from heat.
2. Brush top of the bread with 1/2 the garlic mixture, arrange on baking sheet and broil until toasted. Place 2 pieces of bread on a plate or bowl.
3. Place the skillet with the remaining half of the garlic mixture over high heat. Add shrimp and coat with garlic mixture. Add wine, lemon zest and juice. Cook over medium high heat until shrimp are done. Divide shrimp over bowls.
4. With shrimp removed, place skillet back on high heat and boil. Whisk in remaining butter and simmer to allow sauce to thicken. Pour over shrimp, top with diced chives.