Beef Stew with Chocolate

Ingredients

• 2 pounds beef stew meat, cut into bite-sized pieces
• 1 teaspoon kosher salt, plus more for seasoning
• 1 teaspoon ground black pepper, plus more for seasoning
• 1 tablespoon all-purpose flour
• 2 tablespoons canola oil
• 1 cup frozen sliced carrots
• 1 (8-ounce) package sliced brown mushrooms
• 3 cups diced red potatoes
• 1 (14.5-ounce) can diced tomatoes
• 2 tablespoons finely grated bittersweet chocolate
• 1 teaspoon crushed garlic
• 1 (1.5-ounce) packet meatloaf seasoning (recommended: McCormick)
• 1 (14-ounce) can low-sodium beef broth
• 1 cup red wine, preferably Merlot
• 1 leek, white part only, sliced and cleaned