Ingredients

1/4 teaspoon finely grated grapefruit zest 

1/4 cup fresh grapefruit juice 

1/2 teaspoon finely grated orange zest 

1/4 cup fresh orange juice 

1/2 teaspoon finely grated lemon zest 

2 tablespoons fresh lemon juice 

1 tablespoon rice-wine vinegar (not seasoned) 

2 tablespoons extra-virgin olive oil 

1/4 teaspoon coarse salt 

Pinch of freshly ground pepper 

Preparation

Whisk all the ingredients together in a nonreactive medium bowl until combined. Use immediately, or refrigerate, covered, for up to 3 days.