Heat 1 tablespoon vegetable oil in a skillet over medium heat.
Add 2 pounds short ribs and 1 thickly sliced onion to the skillet. Season with 1 teaspoon salt and 1 teaspoon black pepper.
Sauté for 3-5 minutes on each side until brown.
Add the short ribs and onions in the crock pot.
Add 1 pound peeled and diced carrots, 1 can (8 ounces) tomato sauce, 2 cups cooking red wine, 2 teaspoons garlic salt, 1 teaspoon ground thyme leaves, 1 bay leaf, and 1 cup beef broth to the slow cooker.
Cover and cook on low for 7-8 hours or on high for 3-4 hours.
Remove the ribs, carrots and bay leaf from the crock pot.
In a small bowl, whisk together 1 tablespoon cornstarch and ¼ cup water until smooth.
Stir the cornstarch slurry into the crock pot. Cook until gravy has thicken.
We recommend serving the short ribs and carrots with mashed potatoes with the gravy drizzled over the top.