Preheat the oven to 375ºF. Grease a 9-inch pie plate or other baking dish and place this on a baking tray.
Stir the ground almonds, granulated sugar, brown sugar and cornstarch together. Add the eggs, egg yolks and cream and whisk by hand until blended. Pour this into the prepared pan and sprinkle with the raspberries.
Bake for about 35 minutes, until the clafoutis browns lightly and soufflés around the edges (it will fall once removed from the oven). Serve immediately, dusted with icing sugar.