Holiday how-to: Bring the fiesta to your holiday party with the creamiest, cheesiest guacamole recipe. With just 15 minutes of prep time, you’ll come back to this recipe year-round. Step 1: Just mash 2 avocados together with sour cream, salsa, diced tomato and ½ cup of shredded Cheddar cheese. Step 2: Cover and let chill for 1 hour. Then, sprinkle with extra cheese and tomatoes before serving.