Mustard powder in wooden bowl with spoon on table - Алексей Филатов/Getty Images We may receive a commission on purchases made from links. If you're like a lot of home cooks, your organized spice rack ...

Earlier this week, Shared.com’s recipe for ketchup-and-mustard cake went viral online. Reactions ranged from hopeful (“the resulting confection appears to be appetizing,” says one food writer) to ...