Golden onion crisps baked with cheddar and Parmesan, broken into shards and piled high with seasoned beef mince, pickles, burger sauce and hot guindilla chillies.
Preheat the oven to 190°C fan and line a large baking tray with greaseproof paper. Slice your onions very thinly using a sharp knife or even better, a mandolin.
Mix the cheddar, Parmesan, smoked paprika and a good crack of black pepper together, then scatter evenly over the lined tray to form a thin layer. Spread the thinly sliced onions evenly over the cheese in a single layer, separating the strands so they aren’t piled up.
Bake for 20–30 minutes, rotating the tray halfway through, until the cheese is deep golden and crisp at the edges and the onions are soft and lightly caramelised. Leave to cool completely on the tray until firm.
While the onion base bakes, cook the beef mince in a hot frying pan, breaking it up well. Once browned and slightly crispy at the edges, season with salt, pepper, garlic granules, onion granules and Worcestershire sauce, then cook for another minute. Remove from the heat.
Once fully cooled, lift the onion-cheese sheet from the tray and break it into rough shards.
Layer the onion crisps onto a serving plate, spoon over the hot beef, then finish with burger sauce, diced pickles and sliced guindilla chillies. Serve immediately.