Poutine cheese toastie with gravy

Method

• step 1

  Thinly slice the onion. Melt the butter in a medium saucepan over low heat. Scrunch up a small piece of baking parchment and rinse under the tap. Cook the onions in the pan, covered with the baking parchment, for 15 mins, stirring often until they’ve started to soften and caramelise.

• step 2

  Add the flour and stir into a paste, then cook for 30 seconds more. Add the vinegar and continue to cook until it has almost evaporated completely, then slowly add the stock, a little at a time, stirring until you have a smooth onion gravy.

• step 3

  Spread the mayo over both sides of the bread. Thickly slice the mozzarella, then lay half across 2 slices of the bread. Layer up with the chips, then the cheddar, some black pepper and the remaining mozzarella, then close the sandwiches and slice in half.

• step 4

  Air-fry at 190C for 6-8 mins, flipping over halfway through until golden. Reheat the gravy and serve alongside the toastie for dunking.