Preparation Pulse basil, garlic, salt, and cayenne in a food processor until finely chopped. Add mayonnaise and blend until smooth. Chill, covered, 1 hour (for flavors to develop).
Preparation Pulse basil, garlic, salt, and cayenne in a food processor until finely chopped. Add mayonnaise and blend until smooth. Chill, covered, 1 hour (for flavors to develop).