Make a mayonnaise with the egg yolk, lemon juice, and oil. Whisk in the roasted garlic puree. Combine the other ingredients in a blender and whisk the blended mixture into the roasted garlic mixture. Season with salt and pepper.
*RAW EGG WARNING
Food Network Kitchens suggest caution in consuming raw and lightly-cooked eggs due to the slight risk of Salmonella or other food-borne illness. To reduce this risk, we recommend you use only fresh, properly-refrigerated, clean, grade A or AA eggs with intact shells, and avoid contact between the yolks or whites and the shell.