Beef in Beer in the Slow Cooker

Ingredients (11)

• + 4 teaspoons vegetable oil, divided, or as needed add to pantry
• + 12 shallots, peeled and left whole add to pantry
• + 1 pound cubed beef stew meat add to pantry
• + 1 tablespoon all-purpose flour add to pantry
• + 1 (12 fluid ounce) can or bottle Irish stout beer (such as Guinness®) add to pantry
• + 2 onion, cut in half and sliced add to pantry
• + 1 large garlic clove, crushed add to pantry
• + 4 slices smoked streaky bacon, sliced into strips add to pantry
• ✓ 1 ½ cups fresh button mushrooms
• + salt and ground black pepper to taste add to pantry
• + salt and ground black pepper to taste add to pantry