To prepare the Danish swirls ... In the meantime, prepare the cream: heat the milk in a saucepan. In a small bowl, mix the egg and yolk, sugar, starch, and grated lemon zest (6).

All-purpose flour, for dusting 1 (17.3-ounce) package frozen puff pastry, thawed1 tsp. cornstarch1/2 c. powdered sugar, plus more as neededDirectionsPosition an oven rack in the upper third of the ...