This tarragon mustard aioli recipe can be used on everything from steamed vegetables and roasted chicken to a thick grilled steak. The other great thing about this classic cold sauce recipe, is it only takes a few minutes to make. It can also be adapted to your tastes with different herbs and spices.
1. Combine all ingredients in a medium bowl and mix well.
2. Season to taste with salt and pepper. Cover and refrigerate for 1 hour to blend the flavors, or up to two days.
3. Serve the aioli chilled.