Step 1

Sprinkle chicken with salt and pepper. Heat 1 tablespoon oil in a large skillet over medium-high heat. Add the chicken and cook, flipping once halfway, until browned, about 6 minutes. Transfer to a clean plate.

Step 2

Add the remaining 1 tablespoon oil and onion to the pan. Cover and cook, stirring occasionally, until golden, about 3 minutes. Stir in wine and mustard, scraping up any browned bits. Reduce heat to maintain a simmer. Stir in cream and capers. Return the chicken and any accumulated juices to the pan. Cover and simmer until an instant-read thermometer inserted into the thickest part of a thigh registers 165°F, about 4 minutes. Serve topped with parsley, if desired.