Persimmon Upside-down Cake

Ingredients

• 16 tablespoons unsalted butter
• 1/2 cup brown sugar
• 1 pound fresh Fuju persimmons, peeled, halved and pitted
• 2 1/4 cups all-purpose flour
• 3 teaspoons baking powder
• 1/4 teaspoon salt
• 1 1/2 cups granulated white sugar
• 3 eggs
• 1 1/4 teaspoons vanilla extract
• 3/4 cup whole milk
• Pinch of cream of tartar
• 1 cup heavy cream
• 1 tablespoon confectioners’ sugar