01 -
Preheat an individual sandwich maker. Place one slice of cheese on one slice of bread.
02 -
Spread avocado slices over the cheese slice leaving a border. Add the second slice of cheese, bacon slices, and the other bread slice on top.
03 -
Combine melted butter and mayonnaise. Spread half the mixture on the top slice of bread.
04 -
Place the sandwich into the sandwich maker with the butter-mayo side down. Spread the remaining mixture on the other side of the sandwich, close the maker, and cook for 2 to 5 minutes or until golden brown and cheese is melted.
05 -
Using a heat-resistant spatula or tongs, remove the sandwich. Cut in half and serve immediately.
06 -
Preheat skillet over medium-high heat. Place the sandwich in the skillet and spread butter-mayo mixture on the second side of bread. Cook for 3 minutes, flip carefully, and press gently with a spatula or grill press. Cook for 2 minutes or until golden brown. Add extra butter if bread feels dry, cooking briefly on both sides.