Make the garlic butter

• Mix the room-temperature butter with the minced garlic, salt, chopped basil and red pepper flakes until well combined.

Spread and bake the bread

• Spread the garlic butter on one side of each slice of bread.
• Bake at 185 °C for about 10 minutes, then remove from the oven.

Fill the sandwiches

• On the untoasted side of a slice, layer mild cheddar slices and shredded extra sharp cheddar.
• Top with a second slice of bread, garlic side out.

Toast the sandwiches

• Spread mayonnaise on the outside of the sandwich.
• Toast on low heat until the cheese is nicely melted.