Keep basic chicken scaloppine warm in a 200° oven.
Add olive oil and garlic to hot pan used to cook chicken (don't wash) and stir over high heat until garlic is slightly limp, about 15 seconds. Add chicken broth, lemon peel, lemon juice, and chile flakes to pan; stir until mixture is boiling. Boil, stirring occasionally, until juices are slightly reduced, 1 to 1 1/2 minutes, then stir in fresh cilantro. Spoon sauce evenly over chicken. Add salt and pepper to taste, and garnish with lemon wedges.