Step 1: Sear the Short Ribs (Optional): Heat olive oil in a large skillet over medium-high heat. Season short ribs with salt and pepper. Sear on all sides until browned, about 2-3 minutes per side. This step enhances flavor but can be skipped for a simpler recipe.
Step 2: Prepare the Vegetables: In the slow cooker, combine chopped onion, carrots, and celery. Add minced garlic, dried thyme, and dried rosemary.
Step 3: Layer Ingredients in Slow Cooker: Place seared short ribs on top of the vegetables in the slow cooker.
Step 4: Add Braising Liquid: Pour red wine and beef broth over the short ribs and vegetables. Stir in tomato paste. Add bay leaf.
Step 5: Slow Cook: Cover and cook on low for 7-8 hours or on high for 4-5 hours, or until the short ribs are fork-tender.
Step 6: Thicken the Sauce (Optional): Remove short ribs from the slow cooker and set aside. If desired, thicken the sauce: Whisk together cornstarch and cold water in a small bowl. Stir the slurry into the slow cooker. Turn the slow cooker to high and cook for 10-15 minutes, or until the sauce has thickened.
Step 7: Serve: Return the short ribs to the slow cooker to coat with the sauce. Serve hot over mashed potatoes, polenta, or creamy risotto. Garnish with fresh parsley, if desired.
Optional Tips:For a richer flavor, use bone-in short ribs. If you don't have red wine, you can substitute with more beef broth or a tablespoon of balsamic vinegar. To add a touch of sweetness, consider adding a tablespoon of brown sugar or honey to the braising liquid. For spicier short ribs, add a pinch of red pepper flakes.