Steam and mash the sweet potato until smooth.
In a bowl, mix whole wheat flour, jaggery/dates powder and cardamom.
Add mashed sweet potato and ghee/coconut oil. Mix to form a soft dough (add 1–2 tsp warm water if needed).
Roll into small balls, flatten gently into cookie shapes.
Bake in a preheated oven at 170°C (340°F) for 12–15 minutes, or cook on a tawa on low flame until lightly crisp.
Cool completely before serving.