Ingredients
Berries:
6 cups fresh mixed berries (scant 2 lb.), divided
3/4 cup sugar
1/4 cup fresh orange juice
Vanilla Cream:
1 vanilla bean, halved lengthwise, or 1 1/2 tsp. vanilla extract
1 cup chilled heavy cream
1/3 cup sour cream
1/4 cup sugar
Preparation
Berries: Using a potato masher or the back of a wooden spoon, mash 1 cup berries with sugar and orange juice in a large bowl until sugar begins to dissolve. Gently stir in remaining 5 cups berries. Let sit at room temperature, tossing occasionally, until berries are juicy, 1-2 hours.
Vanilla Cream: Scrape seeds from vanilla bean into a medium bowl. Add chilled cream, sour cream, and sugar. Using a whisk or electric mixer, beat until soft peaks form.
Do Ahead: Cream can be made 30 minutes ahead. Cover and chill.