1Place chicken breasts on a cutting board and cover with plastic wrap. Using a meat mallet, pound each breast to even thickness, about 1/4 inch.
2Mix flour, salt, and pepper in a shallow bowl. Dredge each chicken breast in the flour mixture, shaking off excess.
3Heat olive oil in a large skillet over medium-high heat. Once shimmering, add chicken breasts and cook 3-4 minutes per side until golden brown. Transfer to a plate.
4In the same skillet, melt butter and add minced garlic. Cook for 30 seconds until fragrant.
5Pour in lemon juice and chicken broth, scraping up any browned bits from the bottom of the pan. Stir in capers.
6Return chicken to the skillet and simmer for 2-3 minutes to heat through and allow flavors to meld.
7Transfer to a serving platter, spoon sauce over chicken, and garnish with fresh parsley.