Mix half the zest with sugar to bring out the lemon flavour.
Add the butter and combine with the zest sugar mix.
Mix in the apple sauce as well as 1 1/2 tablespoons of lemon juice
Add the rest of the dry ingredients (moringa, all-purpose flour, cornstarch and salt). Use a spatula and then your hands to bring the dough together to make a ball. If the dough does not come together after a few minutes of mixing, add another 1/2 tablespoon of lemon juice.
Place the dough between two sheets of parchment paper and roll until the dough is about 1/2 a centimetre thick.
Preheat your oven to 320°F
Use your favourite cookie cutter to cut out the cookies.
Bake the cookies on a baking tray lined with parchment paper for 12 minutes
Once the cookies are baked, allow them to cool on a cooling rack and proceed with the frosting