Raspberry Buttermilk Shake

Pick over the raspberries and rinse briefly, then let them drain well.

Place raspberries with sugar, vanilla sugar and lemon juice in the blender and puree finely.

Pour cold buttermilk over the raspberry purée and briefly blend on the lowest setting until creamy.

Put one scoop of vanilla ice cream into each of four tall glasses.

Pour the raspberry buttermilk drink over the vanilla ice cream and serve immediately.