Slow Cooker Beef Pot Roast

Ingredients

• 1 (5-pound) bone-in beef pot roast
• salt and pepper to taste.
• 1 tablespoon all-purpose flour, or as needed
• 2 tablespoons of vegetable oil
• 8 ounces of sliced mushrooms
• 1 medium onion, chopped
• 2 cloves garlic, minced
• 1 tablespoon of butter

• 1 1/2 tablespoons all-purpose flour
• 1 tablespoon of tomato paste
• 2 1/2 cups of chicken broth
• 3 medium carrots, cut into chunks
• 2 stalks of celery, cut into chunks
• 1 sprig of fresh rosemary
• 2 sprigs of fresh thyme

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