Line an 8" tart tin with shortcrust pastry made with 6oz plain flour and 4oz butter. Beat the egg. Melt rest of butter and stir in rest of ingredients, adding the beaten egg. Stir to mix welland pour into pastry case.
Bake for about 30 mins @ 375deg F until slightly brown on top.
Serve at room temperature with a blob Double Thick Cream.