- 3 tablespoons dry mustard
- 1/2 teaspoon turbinado sugar (see Cooks' Note)
- 1 cup safflower or canola oil
- 1 small clove garlic, peeled and minced
- 1/2 small shallot, peeled and minced
- 2 large egg yolks
- Juice of 1 large lemon
- 1 tablespoon Dijon mustard
- 1 teaspoon kosher salt
- 1/2 teaspoon cayenne pepper
- 5 pounds stone crab claws, cracked
- In a small bowl, whisk together the dry mustard, sugar, and 2 tablespoons warm water; let stand 5 minutes. In a small sauté pan over moderate heat, warm 2 tablespoons of the oil. Add the garlic and shallot and sauté, stirring occasionally, for 1 minute.
- In a large bowl using a balloon whisk, whip the egg yolks for 1 minute to lighten them. Whisk in the lemon juice, Dijon mustard, salt, and cayenne pepper. Add the dry-mustard mixture, along with the garlic and shallots, and stir until blended. Gradually drizzle in the remaining 3/4 cup plus 2 tablespoons oil, whisking to combine. Cover and chill at least 20 minutes before serving. DO AHEAD: The mustard sauce can be prepared ahead and stored, covered in the refrigerator, up to 24 hours.
- Serve the mustard sauce in small bowls or ramekins, alongside the stone crab claws.