Photo by Romulo Yanes
YIELD: Makes 4 servings
ACTIVE TIME: 15 minutes
TOTAL TIME: 3 hours
Line loaf pan with a double layer of plastic wrap, allowing a few inches of overhang along sides. Stir together cookie crumbs, zest, butter, and corn syrup in a small bowl, then press into bottom of loaf pan. Spread sorbet evenly over crumb crust and freeze 30 minutes to harden.
While sorbet is freezing, slightly soften frozen yogurt. Spread evenly over sorbet and freeze, covered with plastic wrap, until firm, at least 2 hours.
Using plastic wrap as an aid, lift frozen cake out of pan, then peel off plastic. Let stand 5 minutes to soften, then cut crosswise into 4 slices. Each serving contains about 197 calories and 3 grams fat.