01 - Spread unsalted butter evenly on one side of each ciabatta bread slice.
02 - Layer smoked Gouda cheese and thin apple slices on the unbuttered side of two bread slices. Drizzle with honey and top with the remaining bread slices, buttered side facing outward.
03 - Preheat a skillet or panini press over medium heat. Grill each sandwich until bread turns golden brown and cheese is fully melted, about 3 to 4 minutes per side.