1.5kg/3lb 5oz floury potatoes, such as Maris Piper or King Edwards, peeled
陆 tsp crushed dried chilli flakes
陆 tsp Tabasco sauce
3 tbsp olive oil
180ml/6fl oz olive oil, for shallow frying
1 tbsp red wine vinegar
salt
1 tsp hot smoked paprika (piment贸n picante), plus extra for serving