Remoulade Sauce

Ingredients

• 1/4 cup chopped green onions or scallions (green part only)
• 2 teaspoons chopped garlic
• 1 tablespoon prepared horseradish
• 2 tablespoons Creole or whole-grain mustard
• 2 teaspoons yellow mustard
• 3 tablespoons ketchup
• 1 teaspoon hot sauce
• 1 teaspoon Worcestershire sauce
• 2 tablespoons fresh lemon juice
• 1 large egg
• 1/2 teaspoon salt
• 1/4 teaspoon cayenne
• 1 cup vegetable oil
• 1/2 cup minced onion
• 2 tablespoons minced celery