Bonne Maman Orange Marmalade can be used as an alternative to Bonne Maman Raspberry Preseves
Preheat the oven to 350°F.
Sieve the flour into a large bowl. Break the eggs into a glass bowl over a pan of simmering water, add the sugar and whisk until the mixture has doubled in volume. Remove from the heat and continue whisking until the mixture has cooled to almost room temperature.
Gently fold in the flour and pour the mixture into a 13 x 10 inch rectangular baking tin lined with greaseproof paper.
Bake for 25 minutes, then leave to cool on a wire rack. Cut the sponge into 2 x 2 inch cubes, cover each one with a thin layer of jam and roll in the desiccated coconut to serve.