Guacamole in the refrigerated deli section of the grocery store will work to make this a cute and easy Holiday appetizer. But, fresh made guacamole is alway a big hit at parties. Grinch Guacamole Face Ingredients 1 small yellow onion, chopped 1 serrano chili, chopped 1/2 cup cilantro leaves, finely chopped, divided 2 teaspoons kosher