Melitinia

Using a little bit of sugar, powder the mastic grains in a food processor or use a mortar and pestle. 

Combine all the ingredients for the filling and let them stand. 

Knead the pastry making sure that the margarine is well incorporated into the flour.

Roll out the dough, relatively thin (but not too much because it has to hold the filling).

Cut the pastry into round pieces of about 8cm diameter. 

Place a spoonful of the filling in the center of each round piece and pinch the edges so that you make a small tartlet with "pleats" (look at the notes).

Place them in a baking tray and in the oven at 175 degrees, only with the bottom radiant element on for 20 minutes and then on both radiant elements for 10-20 minutes until they brown.