From this day forth, Crack Pie is no more. The famous pie, served at the New York-based bakery Milk Bar, will change its name, according to a letter written by the bakery’s founder, Christina Tosi.

Milk Bar’s infamous Crack Pie is legendary for its rich, buttery, and addictively sweet flavor—but it’s also one of the most indulgent desserts out there. I take on the challenge of remaking this ...