Preheat an oven to 180°C or 350°F. Put gari into a food processor or blender and blend till smooth. Whisk the gari, baking powder and flour together.
In a mixing bowl, beat sugar, margarine or butter together. Add in egg, vanilla and fresh coconut. Mix in the dry ingredients.
Scoop a tablespoon full of dough onto a baking stray. Press firmly with the back of a spoon. Bake in the preheated oven for 12- 15 minutes till the edges are golden. Store biscuits in an airtight container for 7 days. Unbaked biscuits dough can be stored in the freezer for 3 months.
Adapted from Betumi blog