Strain the water from the millet. Heat the ghee in a pot and briefly toast the millet in it. Then pour in water and oat milk and bring the mixture to a quick boil. After that, reduce the heat and let the millet simmer uncovered for about 10 minutes until tender. If needed, add a bit more liquid.
Meanwhile wash the apple and grapes. Quarter the apples and cut them into small pieces; halve the grapes. Heat coconut oil in a pan and add the apples and grapes, letting them soften slightly over medium heat. Then add cinnamon and cardamom, and deglaze with water. Let everything simmer briefly until slightly reduced.
Chop the dates into small pieces and add them to the millet when there's still some liquid left in the pot.
Once the millet is tender and the liquid has been absorbed, it can be served with the fruit and enjoyed warm. Almonds, almond butter, or hemp seeds make great toppings.