Get ready to eat dessert for breakfast, lunch and a take-home dinner at the fourth annual Havemeyer Sugar Sweets Festival. This humongous bake sale has lured sweet-tooth favorites Momofuku Milk Bar, Saltie and Peter Pan Donuts for a day of sucrose worship. Amateur pastry chefs can test their confectionery skills in contests for Best Vegan/Gluten-Free, Best Fall-Flavored Treat, Most Creative Cupcake, Chocolatastic and Best in Brooklyn. Meanwhile, groove to the music of the Candy Sleepers and Caleb Curtis. Sales will raise money for the City Reliquary. Havemeyer St at Metropolitan Ave, Williamsburg, Brooklyn.