Cheese, onion and bacon tartlets

Method

1. For the pastry, put the flour, salt, mustard powder, butter and lard in a food processor, then pulse to a breadcrumb consistency. Add enough cold water, pulsing, to bring the pastry together. (Alternatively, put the flour/salt/mustard in a bowl, rub in the fats with your fingertips, then add the cold water and mix with a dinner knife.) Turn out onto a work surface, then bring together in a ball. Wrap in cling film, flatten to a disc, then chill for 30 minutes.
2. Heat the oven to 200°C/180°C fan/gas 6. Divide the chilled pastry into 6 equal pieces, then roll out each piece on a lightly floured work surface to the thickness of a pound coin. Use to line the tart tins, pressing to the edges and flutes of the tins and re-rolling any offcuts, if necessary, to patch up the pastry. Prick all over with a fork, then chill for 30 minutes.
3. Line the cases with with previously scrunched up pieces of baking paper/foil. Fill with ceramic baking beans or uncooked rice, then bake for 15 minutes. Remove the paper/foil and baking beans/rice and bake for another 5 minutes until golden and sandy to the touch. Turn down the oven to 170°C/150°C fan/gas 3½.
4. Fry the bacon in a non-stick frying pan over a low heat until it starts to release its oil, then increase the heat and fry until crisp. Transfer to a bowl, leaving most of the fat in the frying pan. Add the onion and shallots to the pan and fry over a medium heat for 12-15 minutes until softened and lightly caramelised. Set aside.
5. Trim the pastry edges with a sharp knife, then spread 1 tsp of chutney on the base of each tart case and put on a baking tray. Divide the onions/shallots/bacon and most of the cheese equally among the tarts.
6. In a bowl beat together the eggs, crème fraîche and some seasoning. Divide equally among the tarts, sprinkle with the remaining cheese, then bake for 20-25 minutes until just set and golden brown. Scatter with chives and serve warm or at room temperature.