Dry roast oats in a pan until lightly browned. Remove from the pan and let cool. Grind to a fine powder.
Dry roast the grated coconut until light brown, about 2~3 minutes. Make sure that the coconut does not burn.
Melt 1 tbsp ghee in the same pan. Add the semolina and fry till the color changes from white to golden. Remove into a mixing bowl, cool slightly.
In the same pan, melt remaining 1tbsp ghee and fry the nuts until golden brown.
To the mixing bowl with rava/ semolina, add the fried nuts, oats powder, sugar, cardamom and mix well.
Stir in the remaining 1~2 tbsp melted ghee and mix to combine.
Slowly add the warm milk to the mixture and make laddoos. Store in an airtight container.