Bourbon Bacon Cheeseburgers

Name: Bourbon Bacon Cheeseburgers
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: American
Ingredients: 12 oz bacon, cut into small pieces; 1 sweet onion, finely diced; 3-4 cloves garlic, finely minced; 2/3 cup apple cider vinegar; 5-6 Tbsp brown sugar; 5 Tbsp Bourbon; 5 Tbsp water; pinch of cayenne pepper; cracked black pepper, to taste; 2 lbs ground beef (I like to use 85/15); 1 small sweet onion; 1 Tbsp heavy cream (optional but recommended); salt and pepper, to taste; green leaf lettuce; 4 slices white American cheese ((or your favorite cheese)); small amount of mayo ((optional)); 4 brioche hamburger buns ((or your favorite buns))