01 -
In a shallow dish, combine flour, salt, and black pepper. Dredge each chicken breast in the flour mixture, ensuring both sides are coated evenly. Shake off any excess flour.
02 -
In a large skillet, heat olive oil and 1 tablespoon butter over medium heat. Sear chicken breasts for 4 to 5 minutes per side until golden brown and fully cooked. Transfer chicken to a plate and cover to keep warm.
03 -
In the same skillet, melt the remaining tablespoon of butter. Add sliced mushrooms and sauté for 5 to 7 minutes until softened and evenly browned.
04 -
Pour chicken broth, balsamic vinegar, and grape juice or apple juice into the skillet. Stir, scraping any browned bits from the pan bottom. Bring to a gentle simmer and cook for 5 minutes.
05 -
For a thicker consistency, whisk cornstarch with cold water in a small bowl. Stir the slurry into the simmering sauce and cook an additional 2 to 3 minutes, until thickened slightly.
06 -
Place chicken breasts back into the skillet. Spoon mushrooms and sauce over the top and simmer for 2 to 3 minutes to heat through.
07 -
Garnish chicken with chopped parsley if desired. Serve immediately, pairing well with mashed potatoes, rice, or pasta.