Grandma’s cookies go to market

At the SoWa Open Market, Minnie’s Mandelbrot are stacked in glass jars, an enticing biscotti-shaped cookie, vanilla with three varieties of swirls and layers: chocolate almond, raspberry walnut, and cinnamon raisin walnut, and a flavor of the week such as chai pecan and strawberry rhubarb ($4 for a pair, $7 for a six-pack). Mandelbrot, an Eastern European Jewish specialty, is Yiddish for “almond bread.’’ Like biscotti, they are baked twice, which means they store (and dunk) well. Last spring, Jaclyn Greenman, a US and global studies teacher, began baking her great-grandmother Minnie’s recipe. It was “handwritten on a folded piece of paper in a collection of random letters and newspaper clippings,’’ says Greenman. Her Uncle Mark, the family baker and also a teacher, would bring the three varieties to Thanksgiving dinners. Even though there were the usual pies, “No one ate anything else for dessert.’’ Available at Marlboro Market, 45 Massachusetts Ave., Boston, 617-536-6614; SoWa Open Market, 460 Harrison Ave., Boston; 857-891-1199, www.minniesmandelbrot.com.