Whiskey Brisket and Sweet Potato Hash Recipe

Name: Whiskey Brisket and Sweet Potato Hash Recipe
Ingredients: 2 pound piece beef brisket, trimmed of fat; 1/4 cup whiskey; 2 medium cloves garlic; 2 medium white onions, chopped (about 2 cups), divided; Kosher salt and freshly ground black pepper; 3 1/2 tablespoons olive oil, divided; 2 carrots, peeled and roughly chopped; 2 bay leaves; 3 sprigs thyme; 2 cups homemade or store-bought low sodium chicken broth, or homemade beef broth (do not use storebought beef broth); 3 medium sweet potatoes, mostly peeled and cut into French fry-style matchsticks; 1 red or yellow bell pepper, finely chopped (about 1 cup); 2 Serrano peppers, minced (about 1/4 cup); 1 tablespoon maple syrup; 2 tablespoons Worcestershire sauce