INGREDIENTS
1
Garlic clove
1
Yellow onion, large
1/4 cup
Mayonnaise
2 tsp
Worcestershire sauce
1/4 tsp
Black pepper, freshly ground
1/8 tsp
Cayenne pepper
1 tsp
Kosher salt
2 tbsp
Butter, unsalted
1 1/4 cups
Sour cream
Crudités for serving (see related tip at left)