Katherine Gillen is PureWow’s senior food editor. She’s a writer, recipe developer and food stylist with a degree in culinary arts and professional experience working in New York City restaurants.

You know those glossy, golden pastries you see at the bakery with a shiny, beautiful finish? Or those glistening brown loaves of bread? Egg wash, baby! Egg wash is a baker's secret, and it helps you ...

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