To make lemon sauce: combine all of the ingredients in a small pot over medium heat. Bring to a boil, then reduce until slightly thickened, about 10-12 minutes.
Heat oil in a skillet over medium-high heat.
Season chicken with salt, pepper, and garlic powder.
Working in small batch, dredge chicken in flour, dip into buttermilk, then dredge in flour again, pressing to coat.
Fry chicken to the skillet, and cook until evenly golden and crispy. Transfer to a towel-lined plate. Drizzle with lemon glaze.