• prep 20 mins
  • total time 20 mins
  • yield Makes about 2 1/2 cups

Ingredients

  • 1 1/2 cups sugar

  • 3 tablespoons cornstarch

  • Salt

  • 2 cups warm water

  • 1 stick unsalted butter, cut into small pieces

  • 1 tablespoon finely grated lemon zest plus 1/2 cup fresh lemon juice (from 2 lemons)

  • 1/4 cup blood-orange and lime juice (mixed, or one or the other)

Cook's Note

Sauce can be refrigerated for up to 2 weeks.

Directions

  1. Step 1

    Combine sugar, cornstarch, and 1/4 teaspoon salt in a medium saucepan. Whisk in water. Bring to a boil, whisking. Continue to boil, whisking, until clear and thick, about 6 minutes more.

  2. Step 2

    Stir in butter, lemon zest, and citrus juices. Cook, stirring regularly, until smooth, 2 to 3 minutes more.

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