Homemade marshmallow spread is so ridiculously easy to make that you'll chuckle at yourself for ever having assumed it was complicated. Making it also allows you to use pure vanilla extract, which tastes so much better than the fake vanillin flavoring in many commercial versions. This spread is superb in S'mores Crêpes .
Cooks' note:
You can substitute pasteurized egg whites such as Eggology. Use amount to equal 1 egg white. Leftover spread keeps, covered and refrigerated, for several weeks.
