My own recipe after experimenting with a few.

Ingredients

One 4-pound beef chuck roast
Kosher salt and freshly ground black pepper
3/4 cup all-purpose flour
1/2 cup all-purpose flour
6-7 tablespoons olive oil
8 medium carrots, cut into 2-inch pieces
2-3 Russet or Gold Potatoes, cut into 1.0-1.5 inch cubes
2 medium onions, cut into 1/2-inch wedges
5 cloves garlic, minced
3 tablespoons tomato paste
1 cup red wine
2 Tbsp Worcestershire Sauce
3 cans (about 6 cups) beef broth
4 oz. IPA beer (dark preferrable)
3 bay leaves
2 sprigs fresh thyme
1/2 teaspoon ground allspice
1/2 cup loosely packed fresh parsley leaves, chopped

Directions

Cut the roast into large bite sized chunks, removing major fat sections. Using a large bowl or a bag-method, add about 1 cup flour and the salt and pepper, and coat the meat with the seasoned flour and shake off any excess.

Heat 4-5 tablespoons of the oil in a large nonstick skillet over medium-high heat. Add the coated meat to the skillet and cook until golden brown on all sides, about 8 minutes, turning as needed. Using a slotted spoon, transfer the meat to the insert of a large crock pot, along with the carrots, potatoes, onions and garlic.

Add the remaining oil to the skillet over medium heat. Add the tomato paste and stir until the oil begins to turn brick-red, about 1 minute. Add the flour and wine and whisk until thick (it's OK if there are some lumps). Add the beef broth, beer, bay leaves, thyme, allspice, 1/2 teaspoon salt and a few grinds of pepper and bring to a simmer, whisking, until the gravy is smooth and thickens slightly, about 4 minutes.

Pour the gravy into the slow cooker. Cover and cook on low for 8 hours. The meat and vegetables should be tender.

Stir in the parsley and salt/pepper.

Discard the bay leaves and thyme stems as you serve.

Note: If the gravy level drops too low, just add straight beef stock to the pot (lazy way), or you can add 1 TBSP butter and 1 TBSP flour to a small saucepan, saute briefly, and add 1 cup beef stock and bring to a boil. Then, after you have your thickened stock, add to the crock pot.