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Caper-Mustard Sauce

By America's Test Kitchen

Published on June 12, 2013

Time

15 minutes

Yield

Serves 4 (Makes about 1/2 cup)

Caper-Mustard Sauce

Ingredients

2 tablespoons capers, rinsed2 tablespoons warm water 1 tablespoon Dijon mustard 1 small shallot, minced (about 1 ½ tablespoons)6 tablespoons (¾ stick) unsalted butter

Instructions

  1. Place capers, water, mustard, and shallot in jar of blender. Heat butter in small heavy-bottomed saucepan over medium heat; cook, swirling pan constantly, until butter turns dark golden brown and has nutty aroma, 4 to 5 minutes. With blender running, slowly pour butter through opening in lid; process until ingredients are emulsified and sauce is smooth. Return sauce to saucepan and season with pepper to taste. Cover to keep warm.
Caper-Mustard Sauce

Caper-Mustard Sauce

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By America's Test Kitchen
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Time

15 minutes

Yield

Serves 4 (Makes about 1/2 cup)

Ingredients

2 tablespoons capers, rinsed
2 tablespoons warm water
1 tablespoon Dijon mustard
1 small shallot, minced (about 1 ½ tablespoons)
6 tablespoons (¾ stick) unsalted butter

Ingredients

2 tablespoons capers, rinsed
2 tablespoons warm water
1 tablespoon Dijon mustard
1 small shallot, minced (about 1 ½ tablespoons)
6 tablespoons (¾ stick) unsalted butter

Ingredients

2 tablespoons capers, rinsed
2 tablespoons warm water
1 tablespoon Dijon mustard
1 small shallot, minced (about 1 ½ tablespoons)
6 tablespoons (¾ stick) unsalted butter

Why This Recipe Works

To devise a pan-seared scallop recipe with a great crust, we seared the scallops in oil, then basted them in butter. Waiting to add the butter ensured that it had enough time to work its browning magic on the scallops, but not enough time to burn. When using scallops treated with sodium tripolyphosphate (a common preservative), we eliminated the chemical flavor in our seared scallop recipe by briefly brining the shellfish in a solution of water, lemon juice, and salt.

Instructions

  1. Place capers, water, mustard, and shallot in jar of blender. Heat butter in small heavy-bottomed saucepan over medium heat; cook, swirling pan constantly, until butter turns dark golden brown and has nutty aroma, 4 to 5 minutes. With blender running, slowly pour butter through opening in lid; process until ingredients are emulsified and sauce is smooth. Return sauce to saucepan and season with pepper to taste. Cover to keep warm.

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