First make the pastry. Rub the flour with the butter until you have a rough, crumbly mix. If you do this in a food processor make sure you use the pulse function to avoid overworking. Add the milk and work into a stiff pastry. Chill for half an hour, then roll out and line the tart tin. Chill again for another half-hour before cooking.

Meanwhile, combine the asparagus, crab, eggs, cream and seasoning in a large bowl. Add them to the pre-cooked tart shell and bake for 15-20 minutes. The filling should still be slightly wobbly in the middle – it will set as it cools. Eat warm or cold.