The Glass Castle is a pretty sobering memoir. The girls can't afford frosting, so they make do with what's available.
Lori, what are you eating?If you had $3.25 would you spend it on a Sprinkles cupcake? I wouldn't.
Margarine, she said.
I wrinkled my nose. Really?
Yeah, she said. Mix it with sugar. Tastes just like frosting.
I made some. It didn't taste like frosting. It was sort of crunchy, because the sugar didn't dissolve, and it was greasy and left a filmy crust in my mouth. But I ate it all anyway.