INGREDIENTS
1 lb
bacon (diced)
1/2
yellow onion (diced)
4 cloves
garlic (minced)
3 tbsp
maple syrup
1 tbsp
Worcestershire sauce
1 tbsp
white vinegar
1 tsp
beef base (optional - see note)
1 tsp
liquid smoke
1/2 tsp
instant espresso powder
4 oz
Grand Cru cheese (grated)
8
slices French bread
2 tbsp
butter (softened)