Start by slicing the chicken breasts in half lengthwise to create thinner pieces. Season both sides generously with kosher salt and freshly cracked black pepper.
In a shallow dish, add the all-purpose flour. Dredge each piece of chicken in the flour, shaking off any excess.
In a large skillet, heat 2 to 3 tablespoons of extra-virgin olive oil over medium-high heat. Once hot, add the chicken pieces in a single layer. Cook for about 4-5 minutes on each side, or until golden brown and cooked through. Remove the chicken from the skillet and set aside.
In the same skillet, reduce the heat to medium and add 4 tablespoons of unsalted butter. Once melted, add the minced garlic and sauté for about 30 seconds until fragrant. Add the thinly sliced lemon and cook for another minute.
Pour in 1/4 cup of freshly squeezed lemon juice, stirring to combine. Allow the sauce to simmer for a minute to meld the flavors.
Return the chicken to the skillet, spooning the sauce over the top. Let it simmer for an additional 2-3 minutes to absorb the flavors.
Garnish with chopped fresh parsley before serving. This Lemon Butter Chicken is perfect over rice, quinoa, or alongside roasted vegetables.