Step 1

Place berries in a large bowl. Mix 1/3 cup sugar, orange zest and orange juice; toss gently with berries. Refrigerate, covered, 45 minutes.

Step 2

Beat cream until soft peaks form. In another bowl, mix mascarpone cheese, vanilla and remaining 1 cup sugar. Fold in whipped cream, a third at a time.

Step 3

Drain berries over a shallow bowl, reserving juices. Dip ladyfingers in reserved juices, allowing excess to drip off; arrange ladyfingers in a single layer on bottom of a 13x9-in. dish. Layer with half the berries and half the mascarpone mixture; repeat layers, starting with ladyfingers.

Step 4

Refrigerate, covered, overnight. If desired, top with additional berries before serving.