1 tbsp. Chopped fresh flat-leaf parsley, optional
1 tbsp. Capers, rinsed and drained
1 tsp. All-purpose flour
1 cup Unsalted chicken stock
1/2 cup Dry white wine
1 sprig Oregano
1/2 tsp. Grated garlic
1 tsp. Grated shallot
2 tbsp. Unsalted butter, divided
1 tbsp. Olive oil, divided
1/2 tsp. Freshly ground black pepper
1/2 tsp. Kosher salt, divided
4 Skinless, boneless chicken breasts
4 Garlic cloves, halved
1 1/2 tsp. Sugar
2 Small lemons, thinly sliced