2 sheets frozen puff pastry, thawed (about 17 ounces total) (such as Pepperidge Farm) 1 3/4 cups whole milk 2 tablespoons unsalted butter, plus more for greasing 1 cinnamon stick 1 3-inch strip of lemon peel 1 cup granulated sugar 2 1/2 tablespoons cornstarch 2 tablespoons all-purpose flour 4 large egg yolks Preheat oven to 500°F. Lightly grease a 12-cup muffin pan with butter. Stack both sheets of pastry on top of each other, then roll into a tight log from one end. Cut the
