Sous Vide Pork Stew with White Beans and Rosemary

Ingredients

• 2 tablespoons vegetable oil
• 1 tablespoon unsalted butter
• 1 (2-pound) pork loin, trimmed and cut into 1 inch pieces
• Salt and freshly ground black pepper
• 2 cups frozen pearl onions
• 2 large carrots, halved lengthwise and cut into 1/2-inch pieces
• 2 cloves garlic, minced
• 2 tablespoons all-purpose flour
• 1 cup dry white wine
• 2 cups chicken stock
• 1 (15-ounce) can white beans, drained and rinsed
• 4 large sprigs fresh rosemary
• 2 bay leaves