INGREDIENTS
1/4 cup
Celery
3 tbsp
Flat-leaf parsley, fresh
2 tbsp
Garlic
1/2 cup
Yellow onions
3 tbsp
Creole or other whole-grain mustard
2 tbsp
Horseradish, prepared
3 tbsp
Ketchup
1/4 cup
Lemon juice, fresh
3 tbsp
Mustard, prepared yellow
1/8 tsp
Black pepper, freshly ground
1/4 tsp
Cayenne
1 tsp
Salt
3/4 cup
Vegetable oil
1/2 cup
Chopped green onions (green and white parts)