To ease the unmoulding, slip a small spatula all around the edges, unclip the tin, and transfer the cake, still on its base, to a flat plate. To make the sauce, gently heat the raspberry jam ...

Pour the mixture through a mesh strainer to remove any lumps into a heat-proof bowl. Cover the mixture with plastic wrap, placing it directly on the surface of the mixture, and let it cool ...

Sandwich together with homemade raspberry jam and whipped cream ... the mixture will curdle, resulting in a cake with a heavier texture). Sieve the flour and baking powder and stir in gradually.

Make this lemon raspberry cake your own by using store bought lemon curd instead of homemade. Or, garnish with strawberry jam and fresh strawberries instead of raspberries. Another classic pairing ...