For giardiniera, heat a char-grill pan over high heat and grill jalapeño, turning occasionally, until charred (10-12 minutes). Halve lengthways and place in a 1-litre sterilised jar with remaining vegetables. Bring vinegar, sugar, salt, garlic, spices and 250ml water to the boil in a saucepan, then pour over vegetables, seal, cool to room temperature and refrigerate for 3-5 days to pickle.

For diavola sauce, combine chilli, sugar and ½ tsp sea salt flakes in a snap-lock bag, seal, squeezing out the air, and leave in a draught-free place for 3-5 days to ferment. Heat olive oil in a saucepan over medium heat, add garlic and sauté until light golden (3-5 minutes). Stir in fermented chilli and cook until liquid evaporates and chilli starts to fry (3-4 minutes), then add butter and 150ml water, and bring to the boil. Add fish sauce, remove from heat, then process in a blender until smooth. Add xanthan gum and blend to emulsify. Keep sauce warm.

Cut chicken Marylands into drumsticks and thighs, then place in a plastic container with chicken wings and buttermilk, and refrigerate overnight to marinate.

Bring chicken to room temperature and heat oil in a deep-fryer to 160C. Place flour in a bowl and season to taste. Remove chicken from buttermilk, coat well in flour, shaking off excess, then deep-fry in batches until golden-brown and cooked through (7-7½ minutes; be careful hot oil may spit). Place chicken in a bowl, pour diavola sauce over, toss to coat and serve scattered with giardiniera and shichimi togarashi.