Pressure Cooker Chicken, Lentil, and Bacon Stew

Ingredients

• tablespoons extra-virgin olive oil, plus more for serving
• ounces slab bacon or pancetta, cut into 1/2-inch lardons
• medium onion, diced
• medium carrots, peeled and roughly chopped
• ounces dried French lentils, such as Le Puy
• sprigs parsley, leaves roughly chopped, stems tied together with a piece of kitc
• bay leaves
• pounds bone-in, skin-on chicken pieces
• quart homemade or store-bought low-sodium chicken stock
• Kosher salt and freshly ground black pepper
• teaspoons sherry vinegar, plus more to taste