Mix the flour, eggs, sugar, butter, baking powder and lemon zest until you have a soft, homogeneous, and smooth dough. Chill in the fridge for 30 minutes.
When you remove the dough from the fridge, pre-heat the oven to 325°F/170°C.
Then, roll out the dough, leaving some aside to make decorative strips for the top.
Put the dough in a previously-greased baking pan and cut the edges well. Spread jam over the dough, then lay the fresh plums over the jam. Top with the remaining strips of dough however you’d like (lattice or similar).
Bake for 30 minutes. Let cool, slice, and enjoy!
*Note: Our photos show a double batch!