Ingredients

3 tablespoons rice wine vinegar 

1 teaspoon Dijon mustard 

Coarse salt 

Freshly ground pepper 

Sugar 

9 tablespoons grapeseed oil 

Preparation

Combine vinegar, mustard, 3/4 teaspoon salt, 1/4 teaspoon pepper, and a pinch of sugar in a jar. Shake to combine. Add oil and shake again until oil is incorporated and mixture is emulsified.