2 tbsp. Coarsely chopped fresh parsley leaves
2 tbsp. All-purpose flour
2 tbsp. Unsalted butter, at room temperature
1/4 cup Capers, drained
1/2 cup Freshly squeezed lemon juice
1 1/2 cups Low-sodium chicken broth
2 pounds Small red potatoes, halved or quartered if larger
1/4 tsp. Freshly ground black pepper
1/2 tsp. Kosher salt
4 Boneless, skinless chicken breasts
1 tbsp. Olive oil