sift the flour into a mixing bowl, stir in the ground hazelnuts or almonds and sugar; add the butter and rub in until the mixture resembles fine breadcrumbs then stir in the beaten egg
tip the mixture into a 23cm flan dish, placed on a baking sheet and press the crumbs over the base and up the sides
prick the base with a fork, chill for 30 minutes then bake for 20-25 minutes in a preheated oven at 180C/Gas 4; cool completely
for the filling, beat together the soft cheese, lemon juice and sugar; whip the cream until soft peaks form, then fold it into the cheese mixture
spread evenly over the base of the tart, dust the edges of the tart with a little icing sugar and arrange the berries on top
8 servings