Preheat the oven to 350°F and line a baking sheet with parchment paper.
Combine the tigernut flour, arrowroot flour, coconut flour, baking powder, and salt in a bowl. Mix well.
Combine the palm shortening, honey, and coconut milk in another bowl and stir well. Sprinkle the gelatin powder over the liquid and stir well with a whisk, making sure the gelatin is completely dissolved.
Add the liquid mixture to the dry ingredients and mix well with a spatula to obtain a smooth dough.
Spoon out heaping tablespoons of dough and line them up on the baking sheet, leaving space around so they can spread during baking. Flatten them up a little with your fingers to approximately ¼-inch to ⅓-inch thick.
Bake in the oven until the edges turn golden, about 15 minutes. When done, allow to cool down before transferring to a cooling rack with a spatula.