6 tbsp mayonnaise
4 tbsp full-fat yogurt or soured cream
Vegetable oil, for deep-frying
8 https://www.deliciousmagazine.co.uk/recipes/flour-tortillasflour tortillas
2 large mackerel, filleted and pin-boned (use tweezers to do this)
¼ small white cabbage, very thinly sliced on a mandoline
1 lime, cut into wedges
Small bunch of fresh coriander sprigs
For the beer batter
100g plain flour
½ tsp baking powder
200ml Mexican beer
For the tomato and chilli salsa
2 tbsp vegetable oil
2 garlic cloves, crushed
1 medium onion, finely chopped
2-3 red or green chillies, deseeded and finely chopped (it’s meant to be quite spicy)
400g ripe vine tomatoes, skinned and chopped