Upside-Down Grape & Mascarpone Cheesecake

Directions

Preheat oven to 350°F.

Spray 9-inch-diameter cake pan with 2-inch-high sides with nonstick spray.

uree 1 cup grapes and grape juice concentrate in blender until as smooth as possible.

Pour purée into medium saucepan.

Add ¼ cup sugar and cornstarch; stir to dissolve cornstarch.

Add remaining 2¼ cups grapes.

Stir over medium heat until mixture thickens, boils, and becomes clear, 2 to 3 minutes (grapes will remain whole); mix in vinegar.

Pour into prepared cake pan. Spread grapes in single layer; cool.

Beat cream cheese, flour, and ¾ cup sugar in large bowl until smooth. Beat in mascarpone, then eggs, 1 at a time. Spoon batter over grape mixture.

Bake cake until just set in center, about 45 minutes.

Place cake directly into refrigerator; chill uncovered until cold, at least 4 hours and up to 1 day.

Cut around cake.

Place plate over pan; hold plate and pan together and invert. Lift off pan.

Cut cake into wedges.