Then add one and a half tablespoons of butter, and puree again.

Add the mint, milk and yogurt and puree in a food processor or blender.

Add the egg whites and puree for about 45 seconds, or until the mixture is smooth.

Transfer the mixture to a blender or a food processor, add the pepper and puree.

In a blender, add the plum tomatoes and puree until smooth.

Add the milk, puree again and season to taste with salt and pepper.

Add butter to taste, and puree until smooth.

Add the cream mixture to the sweet potatoes, and puree for 30 seconds.

Add vegetables and parsley, and puree to a coarse paste.

Add the coconut milk, and puree until the mixture is smooth and very bubbly.