Puff pastry is sensitive to warmth; keeping it chilled until just before rolling prevents it from becoming sticky and di ...

To serve, grip parchment paper at edges to lift lemon square out of pan. Use a sharp knife to cut 16 even squares. Sift confectioners’ sugar on top and serve chilled.

1 ½ cups of cooked old-fashioned oatmeal. Pinch salt. 1/2 - 1 tablespoon of salted butter. ½ cup shredded parmesan cheese. Make oatmeal as usual using the package directions.

Place the squares in an air fryer preheated to 400°F and set to the “air fry” setting. Make sure the squares have about a half-inch of space between them.

Experts prefer the diagonal cut I reached out to Claire Lower, the digital editor at Christopher Kimball’s Milk Street . She has an academic background in chemistry and over a decade of ...