
Creado con IA
Spread 1/2 tablespoon of butter on one side of each slice of bread.
Place 4 slices of bread, buttered side down, on a clean surface.
Spread 1 tablespoon of ketchup on the unbuttered side of each of these 4 slices.
Evenly distribute the shredded cheese over the ketchup-covered slices.
Place the thinly sliced onions on top of the cheese.
Cover each sandwich with the remaining 4 slices of bread, buttered side up.
Heat a skillet over medium heat.
Place the sandwiches in the skillet and cook until the bread is golden brown and the cheese is melted, about 3-4 minutes per side.
Remove the sandwiches from the skillet and let them cool slightly before serving.