Blueberry ice cream

Ingredients
  1 tin blueberry
  1 tin condensed milk, cold
  3 cups whipped cream
  2 egg whites, stiffly beaten with 1 oz icing sugar
  Few drops of vanilla essence

Method
1. Liquidise the blueberries in a blender. 
2. In the condensed milk fold in the cream, blueberries, vanilla essence and stiffly beaten egg whites. 
3. Mix lightly. 
4. Freeze for eight to ten hours in an airtight container until firm.