Spicy Chipotle Bacon Butty with Homemade Bacon Butter & Chipotle Ketchup

Cook the bacon in a frying pan until crisp, then lift out onto kitchen paper and keep a teaspoon of the rendered fat in the pan.

Beat a little finely chopped crisp bacon into the softened butter with a pinch of smoked paprika, then set aside.

Soften the onion in the bacon fat for 6-8 minutes, add the garlic, chipotle paste and tomato purée, then cook for 1 minute.

Stir in the passata, cider vinegar, brown sugar and smoked paprika, then simmer until thick and glossy. Season to taste.

Toast the brioche buns, spread with bacon butter, pile in the crisp bacon and spoon over the warm chipotle ketchup before closing the sandwiches.