This takes just seconds to prepare but makes for a sophisticated dessert.
1 pink or red grapefruit cut crosswise in half
1 tablespoon light-brown sugar
1/4 teaspoon ground cinnamon
1/2 cup plain low-fat yogurt
Heat broiler with rack set 4 inches from heat. With a paring or grapefruit knife, loosen grapefruit segments from membranes and pith.
Sprinkle grapefruit halves with sugar and cinnamon. Broil on a baking sheet until tops are slightly browned, 4 to 5 minutes.
Top with yogurt, and garnish with more cinnamon and enjoy.