Butterfly the chicken breast and cut into 2 equal portions.
Mix the yoghurt with a pinch of salt, crushed garlic and dried thyme.
Put the mixture on top of the chicken, cover and refrigerate for 1 hour.
Preheat the oven to 180C/Gas 4.
Remove the chicken from the fridge and coat with breadcrumbs.
Heat some olive oil in a pan over a moderate heat and fry the chicken for 2 mins each side.
Remove from the pan and place on a baking tray, top with 1 tbsp béchamel sauce, sliced pepperoni, sliced soft mozzarella or some grated hard mozzarella, and parmesan cheese.
Bake in the oven for 10 mins.
Cut the brioche buns in half and toast gently in a frying pan.
On the bottom half of each brioche, spread over some coleslaw, followed by baby gem leaves, the chicken burger and sliced tomoato and top with the other half of the bun.
Serve with fries and barbecue sauce.
Béchamel sauce
Gently bring milk to a boil in a pan with a bay leaf and the onion halves, each studded with a clove.
Remove from heat, leave to infuse for 20 mins.
Melt butter in a pan and add flour.
Stir continuously until a paste forms.
Continue cooking for 2 mins.
Remove onion and bay leaf from the milk and discard.
Add infused milk to the paste gradually, stirring until you have a smooth sauce.
Cook over a low heat for 5-10 mins, stirring continuously until thickened.
Season to taste.
Posh coleslaw
Shred the cabbage and place in a mixing bowl.
Finely dice the onion and grate the carrot.
Mix with white wine vinegar and season with sea salt.
Cover with foil and refrigerate for a couple of hours.
Remove from the fridge, strain the vinegar and mix with mayonnaise.
Recipe by appetite magazine at https://www.appetitemag.co.uk/parmo-chicken-burger/