Delicious Slow Cooker Beef Stew

Ingredients

• 2 pounds beef chuck roast, cut into 1-inch cubes
• 4 medium carrots, peeled and sliced
• 3 medium potatoes, diced
• 1 large onion, chopped
• 2 cloves garlic, minced
• 2 stalks celery, chopped
• 4 cups beef broth
• 1 cup red wine (such as Merlot) or additional beef broth
• 2 teaspoons dried thyme
• 2 bay leaves
• Salt and pepper to taste
• 2 tablespoons all-purpose flour (optional)