You can replace crème fraîche with sour cream.
If you decide to swap the high-oleic sunflower oil for coconut oil, or butter, or strong flavoured seed oil, you will
not get the same spongy and well-risen doughnuts. Best alternative is MCT oil.
For the cinnamon coating, I combine two sweeteners: allulose provides the sweetness without after taste and erythritol provides the ‘crystals’. This combination makes the ‘cooling’ effect of erythritol virtually undetectable. You can, of course, use whichever alternative suits you best.
Nutrition calculated on the basis of 6 doughnuts.
The only way to ensure accurate measurement of ingredients is with
Metric Kitchen Scales (U.S. alternative
HERE).