Creamy Orange Sweet Potato Sauce

This is so decadent tasting, it's hard to believe it's both healthy and easy!  I had it with steamed kale but I will have to think of other things to eat it with!   It reminded me of Hollandaise sauce.  It even looked like it because I used an oriental yam, which is yellow.

1 medium sweet potato
2 Tbsp pignolias (mediterranean pine nuts)
1/2 cup fresh squeezed orange juice
1 Tbsp riesling raisin vinegar

Peel the sweet potato, cut into cubes, and steam or pressure cook until tender.  Blend everything including cooking water in a high-speed blender until really creamy!  Pour over something.  Here it is with steamed kale:

I bet this would be good with asparagus!   Do you have any other suggestions?