- 1 tablespoon butter
- 4 skinless, boneless chicken breast halves
- 1/2 cup white wine
- 1/2 cup chopped white onion
- 1 cup sour cream
- salt and ground black pepper to taste
- Melt butter in a skillet over medium heat; cook chicken in melted butter until browned completely, 2 to 3 minutes per side. Pour wine into the skillet, bring to a simmer, reduce heat to low, and continue cooking until the chicken is no longer pink in the center and the juices run clear, about 25 minutes. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C). Remove chicken from the skillet to a serving platter.
- Stir onion into the liquid remaining in the skillet; cook and stir until onion is tender, 5 to 7 minutes. Add sour cream to the skillet; stir until smooth. Season the mixture with salt and pepper; pour over chicken.