Tom Kerridge’s double chocolate & passion fruit tart,

This dish would also work with salmon or sliced scallops but you’ll need the freshest fish possible as you’re basically eating it raw. If you can’t get super-fresh fish over the holidays, you can use diced smoked salmon, picked white crabmeat, or chopped cooked king prawns instead.

SERVES 8 PREP 45 mins plus curing NO COOK EASY

For the fish

400g fresh line-caught tuna

3 tbsp olive oil

2 limes, zested, 1 juiced

1 tbsp cumin seeds

1 tbsp coriander seeds

½ tsp chilli flakes

For the avocado purée

3 ripe avocados, de-stoned and peeled

3 tbsp coriander leaves

1 tbsp pickle liquor from the pickled jalapeño chillies, see right To serve

8 small soft flour tacos oil, for brushing and drizzling pickled jalapeño chillies 50g pomegranate seeds 1 bunch coriander, chopped, with a few leaves left whole 4 spring onions, shredded 2 limes, cut into wedges

1 Slice the tuna into 1cm strips, then dice into rough 1cm cubes. Drizzle over the olive oil and scatter over the lime zest, stir and put in the fridge for 20 mins or so. Gently toast the cumin and coriander in a small frying pan, then tip into a pestle and mortar with a pinch of salt and the chilli flakes and crush to a coarse powder. Stir the spice mix into the tuna with the lime juice and put the bowl back in the fridge for at least 10 mins or up to 1 hr.

2 To make the avocado purée, put all the ingredients in a food processor with a pinch of salt and blitz until you have a smooth purée, adding a little oil if it’s too thick to blitz. Spoon the mixture into a container.

3 If you like your tacos crispy, heat oven to 180C/160C fan/gas 4, brush them with a little oil, place on a baking sheet and cook for 10-15 mins. To build each taco, spoon on some avocado purée and spread out to the edge. Spoon on the spiced tuna and sprinkle over the chillies, pomegranate seeds, coriander and spring onions, drizzle with more oil and add a lime wedge to the plate. Eat with your hands, if soft, or a knife and fork if crispy.

GOOD TO KNOW fibre • omega-3 • 1 of 5-a-day PER SERVING 347 kcals • fat 18g • saturates 4g • carbs 25g • sugars 4g • fibre 6g • protein 18g • salt 1.1g