1/3 cup sugar
2 extra-large egg yolks, at room temperature
2 tablespoons ricotta cheese
1 teaspoon pure vanilla extract
1/4 teaspoon kosher salt
1 tablespoon grated lemon zest (2 lemons)
2 sheets (1 box) frozen puff pastry, defrosted
1 egg beaten with 1 tablespoon water, for egg wash
Place the cream cheese and sugar in the bowl of an electric mixer fitted with a paddle attachment and cream them together on low speed until smooth. With the mixer still on low, add the egg yolks, ricotta, vanilla, salt, and lemon zest and mix until just combined. Don't whip!
Bake the pastries for about 20 minutes, rotating the pan once during baking, until puffed and brown. Serve warm.