- STEP 1
Sift the flour and a pinch of salt into a bowl, then rub in the butter until the mixture resembles breadcrumbs. Add the egg yolk and 1-2tbsp cold water, and stir to bring the mixture together. Knead briefly on a floured work surface and wrap in clingfilm. Chill in the fridge for 30 minutes.
- STEP 2
To make the filling, heat the knob of butter in a large frying pan and add the onion. Cook gently for about 4-5 minutes until softened, then pour in the sherry and simmer for 2 minutes. Add the vinegar and Worcestershire sauce and simmer for another minute. Stir in the mustard and cayenne pepper, remove from the heat and leave to cool.
- STEP 3
Heat the oven to 190C (170C fan). Roll out the pastry and use to line 6 tartlet tins (10cm diameter).line with baking paper and baking beans and blind bake for 15 minutes. Remove the paper and beans.
- STEP 4
Scoop the crab meat from the shells into a bowl and briefly mix. Beat together the egg and cream, then fold in the onion mixture and crab meat. Spoon into the pastry cases and bake for 15-20 minutes, until just set.