Hi Maudy, there are a few things you can do to make the sauce thicker. You could add more heavy cream and cook it down until it thickens. You could also add a tbsp or two of cashew butter. The third thing you can do is to add some yogurt at the end of the cooking process. If you wish to have a more rich, buttery flavor, you could add some ghee which is an indian clarified butter, available at most health food stores.
hee says :