01 -
Beat butter and sugar until creamy, then add the eggs. Grate the zest from one lemon and add it to the mixture. Mix flour and baking powder together, then briefly fold into the batter.
02 -
Pour the batter into the baking pan, smooth the surface, and distribute the raspberries evenly on top.
03 -
Bake in the oven at 300°F (150°C) fan/convection for about 25-30 minutes, performing a toothpick test toward the end to check for doneness.
04 -
While the cake is still baking, prepare the syrup. Heat lemon juice and sugar in a small pot, stirring until the sugar dissolves completely.
05 -
Remove the cake from the oven and poke it several times with a toothpick or wooden skewer. Pour the syrup over the cake, allowing it to soak in.
06 -
After the cake has cooled, make the icing by mixing powdered sugar with lemon juice and milk - it should be somewhat thick. Gently heat the jam in a small pot until it becomes fluid.
07 -
Spread the icing evenly over the cake using a pastry brush. Drop small dollops of jam onto the icing and swirl with a toothpick to create a marbled effect.