Marshmallow hot cocoa cookies were a holiday favorite for me when I was a child. Twenty years and a culinary degree later, ...

In the late 1960s, the psychologist Walter Mischel introduced the famous marshmallow test. Children were offered the choice between one smaller reward — in the most famous version of the experiment, a ...

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The premise is simple: You can eat one marshmallow now or, if you can wait, you get to eat two marshmallows later. It’s an experiment in self-control for preschoolers dreamed up by psychologist Dr.