Dredging: In a bowl, mix flour, garlic powder, salt, and white pepper. Dredge the chicken in the flour mixture, shaking off excess.
Cooking Chicken: Heat a large pan on medium-low and add butter. Cook the coated chicken breasts for about 7 minutes per side, until golden brown. Remove and set aside.
Making the Sauce: In the same pan, lower the heat and add butter with garlic cloves. Sauté for 1-2 minutes until fragrant. Add lemon juice, lemon zest, and the 1 tsp of the dredge seasoning, simmering the lemon butter sauce for a few minutes.
Light simmer: Return the chicken to the pan and coat it with the sauce. Cook for an additional 2-4 minutes until heated through. Plate the chicken and drizzle with any remaining sauce.