Invest in a half sheet pan that is two inches deep. Easy to find on line for about $20. I discovered them when I became frustrated with a Barefoot Contessa recipe for pecan pie squares which calls for baking in a half sheet pan and always overflows, making a horrible mess in the oven. But not anymore! The two inch deep half sheet pan is my absolute favorite pan--- it even comes with a plastic cover that snaps on!!

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