Fry bacon until crisp, remove and reserve. In a medium saucepan over medium-high heat, sweat the onion, butter, and thyme leaves until tender, about 8 minutes. Add beer, stock, and bread. Simmer 10 minutes. Puree with an immersion blender. Season with salt and pepper. Garnish with cheese, bacon and fresh thyme sprigs.
Recipe courtesy of Dave Lieberman