Preheat your oven or air fryer to 230c / 445 F. Get your baking potatoes and with a knife or fork, gently stab around the potato 8 times (this releases the steam when cooking). Place the potato on a sheet of tinned/aluminium foil and drizzle with a teaspoon of vegetable oil, a big pinch of flaky salt, and grinding of black pepper. Rub the seasoning into the potato, then close up the tinned foil around the potato. Place in the oven for 1 hour. Then remove the tinned foil and bake for another 15-20 minutes until the skin is crispy.
Meanwhile, we're going to cook our beans which can simmer on low heat while the potatoes are cooking - the longer they simmer, the tastier they'll be. Place a deep frying pan on medium heat and drizzle with 1 tablespoon of vegetable or olive oil. Once hot, add in the onions and garlic. Season with salt and pepper, and leave to fry stirring occasionally for 10 minutes until softened.
Once softened, add in the paprika and tomato paste. Stir for a few minutes.
Next up, add in the passata, the beans, malt vinegar, sugar, and season with more salt and pepper if need be. Bring to the boil, then reduce the heat to low and leave the beans to gently simmer until your potato is done. Stir occasionally to ensure the base doesn't catch (add a splash of water if the sauce is too thick).
When you're 15 minutes out from your potatoes being ready, add your chorizo sausages to a pan and break apart with a wooden spoon and fry until crispy.
When your potatoes are nearly ready and your chorizo is nearly done, add the cheddar and mozzarella cheese into the beans and mix thoroughly.
Remove your potatoes from the oven and place onto your plates. Slice a cross into the potato and open it up, place a dollop of salted butter into the centre.
Top with the cheesy homemade beans, crispy chorizo, and chives. Enjoy!
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Step-by-Step Photos: My blog post includes helpful step-by-step photos to help guide you through making this recipe - so scroll up for more!