Orange Pain de Gênes

Bring the marzipan to room temperature and smooth it using a rubber spatula.

Add the egg to the marzipan and mix well with a hand mixer with paddle attachment. When combined, add the sugar and beat until the mixture turns pale. (The batter should be thick enough to hold its shape.)

Sift the dry ingredients together and fold them into the mixture using a rubber spatula.

In a separate bowl, combine the orange jam and a small portion of the batter from step 3 with the melted butter. Mix well, then return this mixture to the remaining batter and fold to combine.

Quickly mix everything together, pour into a mold, and bake in a preheated oven at 160°C (320°F) for 25 minutes.

Let the cake cool, then chill in the refrigerator. Slice and serve with a spoonful of orange jam on top.