Step 1

Dry the chicken cubes with paper towels and place in a medium bowl. Add the flour, salt, and pepper and toss to combine. Heat the oil in a 12-inch skillet (preferably nonstick) over high heat until very hot but not smoking. Add the chicken cubes and cook in one layer, turning occasionally, until cooked through, about 3 1/2 minutes. Meanwhile, combine the garlic and parsley in a small bowl.

Step 2

Add the butter and the parsley mixture to the skillet and sauté for 1 minute longer, shaking the skillet occasionally to coat the chicken.

Step 3

To serve, divide among four plates, add a wedge of lemon to each plate, and serve within 15 minutes.