Raspberry Tart (tarte aux Framboises)

Servings: 4. Pre-heat the oven to 260C/500F. Lightly butter and flour an 18 cm ( 7 in) tart tin with a removable base. Line the prepared tart tin. Blind-bake it for about 10 to 15 minutes, protecting the edges with aluminium foil. Leave it to cool in its tin. Reduce the oven temperature to 190C/375F. Whisk the egg, egg yolks, sugar and cream together, making sure the sugar dissolves. Arrange the raspberries on the bottom of the pre-cooked pastry shell, pointed ends facing upwards, in concentric circles. Cover them with the egg mixture. Bake the tart for about 40 minutes in the bottom of the oven. Watch very carefully to see that the filling never reaches boiling point. When the tart has cooled completely, take it out of the tin.