It's so good, I buy multiple boxes at once. I've made Trader Joe's Cinnamon Crumb Coffee Cake Mix for three parties, and almost everyone who tries it immediately asks if it's my grandma's or my mom's ...

This deliciously moist, vanilla-scented cake features a cinnamon-brown sugar swirl in the middle and buttery streusel on top. As it bakes, the batter puffs up and creates delectably sweet, ...