First you cook an orange syrup with the juice of the orange and the three tablespoons of sugar. Don't worry if it's very runny in the beginning, if you cook it for a while on low/medium heat, it will eventually thicken! Set aside and let it cool down a bit.
Melt the margarine and mix it with the sugar.
Add two tablespoons of the syrup and the flour to the mixture.
Knead the mixture until you have a firm dough.
Crush or cut the walnuts and mix them together with the syrup and the cinnamon.
Form balls with small pits in the middle for the filling. Use a bit more than one teaspoon dough per cookie.
Fill the cookies with the syrup & nut mixture.
Put the cookies on a tray with baking parchment and bake them for 20-25 minutes at 160 degrees celsius until they're golden brown.
Let the cookies cool and then enjoy! :)