Low-Fat Lemon Frozen Yogurt

Stir together 1/4 cup sugar, lemon juice and lemon zest in a small bowl, until sugar is dissolved.

Process frozen yogurt in a food processor until smooth and slightly softened. Add the sugar-lemon mixture and process until combined. (Alternatively, allow the frozen yogurt to soften slightly and whisk together with the sugar-lemon mixture in a medium bowl until well-combined.) Scoop the frozen yogurt into chilled dessert dishes and return to the freezer to firm up for 30 minutes.

Meanwhile, stir together raspberries and remaining 1 tablespoon sugar in a small bowl; let stand until the berries are juicy, about 15 minutes. Spoon over the frozen yogurt.