Pros fold parchment into a paper lid (called a cartouche ... You could do this with shrimp, Old Bay seasoning, butter, and a splash of beer, for instance, or salmon, pesto, and white wine.
Cutting parchment circles to fit the bottom of cake pans is an age-old trick that ensures flawless ... a piping bag on hand, parchment paper can be folded into a cone shape to create a makeshift ...