Sweet Cheese Filling

• 12½ oz [355 g] twaróg or ricotta cheese
• ¼ cup [

Grated zest of ½ lemon or orange (optional)

Strain the twaróg by wrapping it in a cheesecloth and twisting the ends tightly to squeeze out the excess water. Then, in a medium mixing bowl, whisk the strained twaróg together with the sugar, egg yolks, cream cheese, flour, vanilla, and zest (if using) until all the ingredients are incorporated and you have a smooth paste.

Use immed