Pistachio Souffles with Soft Chocolate Centers

INGREDIENTS

• 1 3/4 ounces heavy cream
• 4 ounces roughly chopped dark chocolate
• 1 ounce finely grated dark chocolate
• 3 tablespoons unsalted butter, softened
• 1 3/4 cups milk
• 1/2 vanilla bean, split lengthwise and seeds scraped
• 1/4 cup pistachio paste
• 4 large egg yolks
• 1/4 cup granulated sugar
• 2 tablespoons all-purpose flour
• 2 tablespoons cornstarch
• 4 large egg whites
• 1/4 cup superfine sugar
• , warmed, for serving Creme Anglaise