Add the butter to a small bowl. Add the minced garlic and parsley to the bowl.Use a fork to mash the mixture until you have a spreadable mixture and the ingredients have melded into the butter.
Evenly spread the butter over one side of the bread slices.Sprinkle each slice with the cheese if using.
Place the slices of buttered bread on the tray in the air fryer basket. Do not overcrowd the basket.Cook for 5 minutes at 200°C (395°F).You will need to cook these in batches so once the first batch is cooked keep them warm by placing them on a plate and covering it with foil.
Notes
Butter - I use salted Kerrygold butter for this recipe, and all my recipes. (Not an ad)
Bread - For best results, I use fresh bread. French baguettes are great for this recipe but you can use other breads such as ciabatta or sourdough loaves.
Air Fryer - I have a Ninja Air Fryer Max, a basket-style air fryer. (Not an Ad)
Nutritional Information - all nutritional information shared is an estimate based on third-party calculations. If calorie count and/or nutritional values are important to you, we recommend putting the ingredients through whichever online nutritional calculator you prefer. Calories can vary depending on which brands were used. Each recipe and nutritional value will vary depending on the brands you use, measuring methods and portion sizes per household.
Weights and measurements - For US readers, I use Cuisipro measuring cups and spoons, and a Pyrex measuring jug for liquids. These are the industry standard. Cup/spoon volumes can differ from brand to brand, for accuracy, I recommend weighing all ingredients if possible for the best results.