Guinness Braised Short Ribs: My Birra-licious Secret!

Ingredients

• 2 1/2 lbs (1.1 kg) Bone-in beef short ribs, about 2-3 inches thick
• 2 tablespoons (30 ml) Olive oil, extra virgin
• 1 large Yellow onion, chopped (about 1.5 cups)
• 2 medium Carrots, peeled and chopped (about 1 cup)
• 2 stalks Celery, chopped (about 1 cup)
• 4 cloves Garlic, minced
• 2 tablespoons (30 ml) Tomato paste
• 1 bottle (11.2 oz / 330 ml) Guinness Stout (or other dark stout)
• 1 cup (240 ml) Beef broth, low sodium
• 2 sprigs Fresh rosemary
• 2 sprigs Fresh thyme
• 1 Bay leaf
• 1 tablespoon (15 ml) Worcestershire sauce
• Salt and freshly ground black pepper, to taste
• 2 tablespoons (30 ml) All-purpose flour (for dredging)
• 4 cups (960 ml) Water
• 1 teaspoon (5 ml) Salt
• 1 cup (160 g) Polenta (coarse ground cornmeal)
• 1/2 cup (120 ml) Heavy cream
• 1/4 cup (57 g) Butter, unsalted
• 1/2 cup (50 g) Grated Parmesan cheese