Either use shop bought shortcrust pastry or make your own in the usual way.
Roll out pastry and line a greased pie dish. Prick all over with a fork and bake for 20 mins gas mark 5 / 375F / 190C. Allow to cool.
Spread a generous layer of raspberry jam on top of the pastry base.
Mix the dry sponge ingredients together (putting a handful of the flaked almonds to one side), then add the wet and mix again. Pour over the jammy pastry base. Sprinkle remaining almonds on top.
Bake at gas mark 5 / 375F / 190C for 35 mins.