Air Fryer Cheese and Onion Toasties

Air fryer cheese and onion toasties are crispy on the outside, gooey in the middle and full of classic flavours. This quick and easy recipe delivers irresistible comfort food whether you are looking for an indulgent snack or an easy lunch. 

Can you make cheese toasties in an air fryer?

Yes, and even better, you can add other things! 

This is the best cheese and onion toastie I’ve ever made. Gooey cheese, crisp red onions and golden toasted bread, perfect. 

I even add extra cheese on top, so it’s like a filthy Air fryer cheese on toast! 

Why I Love Air Fryer Cheese and Onion Toasties

Who wouldn’t love air fryer cheese and onion toasties?

• I work from home, often alone, so Onion and cheese toastie lunches are perfect! Quick, easy, one serving, and super tasty.
• Grilled cheese with onion is always comforting. I like it dipped in soup!
• I love a Cheese sandwich, so all the variations are brilliant!

Ingredients For Air Fryer Cheese and Onion Toasties

All you need for delicious cheese and onion toasties in an air fryer is:

Thick Bread

Butter

Cheddar Cheese

Red Onion

How to Air Fry Cheese and Onion Toasties – Step-by-Step Instructions

Full, easy-to-follow instructions and quantities are available in the recipe card at the bottom of this post.

Step One

Preheat the air fryer to 200 degrees C and set it for 8 minutes. If your air fryer doesn’t have a preheat setting, just set it for 10 minutes and add the toastie once it’s been on for 2 minutes. 

Step Two

Butter the bread liberally on both sides, spreading right to the edges. 

Step Three

Sprinkle most of the grated cheese onto one slice of bread, leaving a handful to top.

Step Four

Evenly sprinkle on the red onion in a thin layer. 

Step Five

Top with the other slice of bread. 

Step Six

Carefully place it in the centre of the air fryer basket on top of the crisper tray. Spreading both sides with butter means you don’t need to oil the tray. 

Step Seven 

Air fry for 4 minutes. 

Step Eight

Carefully flip over.

Step Nine

Sprinkle the rest of the cheese on top. The cheese would blow off on a cold sandwich, but because your sandwich is already warm, if you lightly press it down, it will start to melt and stick in place. 

Step Ten

Return to the air fryer and air fry for 4-5 more minutes until the cheese is golden brown and how you like it. 

Step Eleven

Carefully remove from the basket, cut in half and serve.

Variations

Skip the Cheese Top

But it’s not necessary. 

I love extra cheese on the top. Because who doesn’t love extra cheese? 

You can skip it and use less cheese or put more cheese in the middle.

Use Different Bread

I’ve used regular white bread for this, but sometimes I make my toasties with seeded bread because that’s what we usually buy. 

For an extra treat, sometimes I make toasties on thick tiger bread, which is absolutely delicious. 

You can really use any sandwich bread. 

Use Brown Onions

Brown/yellow onions are fine. I prefer red onions, so I use them in pretty much anything. But it’s up to you. 

Use Different Cheese

I use mature cheddar in most of my toasties, but any cheese that melts, that you usually use for cheese on toast, works. I recommend a strong flavour so that it doesn’t get overwhelmed by the onions. 

Other Recipes 

If you like these air fryer cheese and onion toasties, you might also want to try these air fryer recipes:

• Air Fryer Tuna Melts
• Air Fryer Baked Potatoes
• Cheesy Bacon and Leek Potato Skins
• Air Fryer Mac and Cheese
• Chicken Tikka Wraps
• Chicken Fajitas
• Cheese and Bean Toasties
• Air Fryer Pizza Bagels