Dry the chuck roast with a paper towel. Season both sides with salt and pepper.
4 pounds chuck roast, Salt to taste, Black pepper to taste
Heat the oil in a pan over high heat. Once hot, sear both sides of the roast for 1-2 minutes or until browned.
In a mixing bowl, combine the all-purpose flour and ¼ cup broth, whisking until smooth.
2 Tablespoons all-purpose flour, 1 1/4 cups low-sodium beef broth
In the bottom of a slow cooker, add the flour mixture, the remaining broth, tomato sauce, garlic, thyme, rosemary, paprika, mustard powder, salt, and pepper. Stir to combine.
1/4 cup tomato sauce, 4 cloves garlic, 1 sprig fresh thyme, 1 sprig fresh rosemary, 2 teaspoons paprika, 1 teaspoon mustard powder
Add the seared beef, carrots, onions, and potatoes. Stir to combine and coat the beef.
4 large carrots, 1 large onion, 1 pound Yukon gold potatoes
Cover the slow cooker, and set it on HIGH for 4-6 hours or LOW for 8 hours.
Store in the fridge for up to 4 days or in the freezer for up to 4 months.