To make your aioli sauce, get a hand blender, a small blender, or a food processor.
If using a hand blender, prepare and add your ingredients to a mixing bowl, then blend from there. If using a food processor or standing blender, you can add the ingredients straight into your machine. Your basil leaves and mayonnaise can go straight in. Peel and crush your garlic clove in a garlic press, or dice it with a knife, and add in your garlic. Finally, squeeze in your lemon juice.
Blend your ingredients together until you have a smooth, white, creamy sauce. Give it a taste and add salt and pepper as needed. We added 1/2 tsp of salt and 1/2 tsp of pepper.
Once your sauce is ready, pour it into a bowl, tray, or serving dish, ready for your guests to enjoy with a wide range of different sides and dishes.