No Thanks

Keep In Touch With

Sign up and we'll send inspiration straight to you.

Martha Stewart takes your privacy seriously. To learn more, please read our Privacy Policy.

Sour Lemon Sauce

  • yield: Makes 4 cups


  • 2 cups sugar
  • 2 tablespoons plus 1 1/2 teaspoons cornstarch
  • Large pinch of salt
  • 2 1/2 cups hot water
  • 7 tablespoons unsalted butter
  • 1/2 cup freshly squeezed lemon juice
  • 2 tablespoons freshly grated lemon zest


  1. Step 1

    In a heatproof bowl set over (but not touching) simmering water, mix together sugar, cornstarch, and salt. Add hot water and cook, 3 to 5 minutes, whisking gently, until thick.

  2. Step 2

    Add the butter, lemon juice, and zest and continue cooking, stirring gently, for about 5 minutes. Cool slightly before using, but do not refrigerate (the sauce will become aspic-like) and do not reheat.

The Martha Stewart Show, December 2010