Get a food processor when you subscribe to our print magazine
Heat oven to 190C/fan 170C/gas 5. Oil or butter a 23cm flan dish or tin (not loose-bottomed) and scatter the berries over the base.
Whizz all the batter ingredients in a blender until smooth, pour it over the fruits and bake for 20-25 mins until risen and golden brown. Serve warm.