Place the flour into a bowl, add the butter, salt and thyme (if using) then rub between your fingers until the mixture looks like coarse breadcrumbs. Add the egg and mix with your fingers. Knead on a floured surface until smooth, wrap in cling and chill in the fridge for 30 minutes.
Grease a 23cm deep tart tin and roll the pastry out to on a lightly floured surface and use to line the tin.
To make the filling, whisk together the eggs, cream, and milk then season.
Cook the shallots and mushrooms in butter for 5 minutes, cool, spread over the base of the tart.
Pour the custard into the tart tin, sprinkle the cheese over the top and put in the oven for 30-40 minutes.
Once cooked, let the quiche sit for 5 minutes and trim the edge of the pastry crust.
Place the flour into a bowl, add the butter, salt and thyme (if using) then rub between your fingers until the mixture looks like coarse breadcrumbs. Add the egg and mix with your fingers. Knead on a floured surface until smooth, wrap in cling and chill in the fridge for 30 minutes.
Grease a 23cm deep tart tin and roll the pastry out to on a lightly floured surface and use to line the tin.
To make the filling, whisk together the eggs, cream, and milk then season.
Cook the shallots and mushrooms in butter for 5 minutes, cool, spread over the base of the tart.
Pour the custard into the tart tin, sprinkle the cheese over the top and put in the oven for 30-40 minutes.
Once cooked, let the quiche sit for 5 minutes and trim the edge of the pastry crust.