• 1/2 cup whole natural unsalted almonds with skins
• 2 tablespoons old-fashioned oats
• 6 tablespoons (3/4 stick) unsalted butter
• 6 tablespoons superfine sugar
• 2 tablespoons (packed) light brown sugar
• 1 tablespoon all-purpose flour
• 1/4 teaspoon kosher salt
• 4 ounces bittersweet chocolate, melted