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Shallow-Poached Salmon with Leek Beurre Blanc
Shallow poaching under a cartouche, a circle of parchment paper, yields tender fish in minutes. This method works with any mild fish, such as flounder, rockfish, or grouper. If any fillets are of uneven thickness (such as tapered portions near the tail), fold the thin portion underneath to achieve an even 3/4-inch thickness.