Roasted Cherry Shortcake with Buttermilk Cream

INGREDIENTS

2 cups

pitted sweet cherries, halved

2/3 cup

sugar (use a little less if your cherries are very sweet, or a little more if they are very tart)

heaping tablespoon cornstarch

or 6 fresh basil leaves, coarsely chopped

1/2 cup

plain yogurt

1/2 cup

heavy whipping cream

seeds from 1 vanilla bean

1 tsp

vanilla extract

1 tsp

lemon zest

egg

2 3/4 cups

all purpose flour

1/2 cup

sugar

1 tbsp

baking powder

1 tsp

baking soda

11 tbsp

butter, frozen, cut into pieces

3/4 cup

whole buttermilk

1 1/2 cups

heavy whipping cream

1/2 cup

powdered sugar

1 pinch

or two of cream of tartar