Combine carrot, sweet potato, fat and garlic in instant pot with ½ cup broth. Pressure cook on high for 10 minutes.
Combine 1 cup broth with arrowroot or tapioca to make a slurry. Add gelatin to the slurry.
Manually release pressure, blend the cooked vegetables, add nutritional yeast and broth/starch/gelatin slurry. Cook until thickened.
Adjust consistency using remaining broth.
