- 2 cloves garlic, sliced
- 1 pinch kosher salt
- 1 tablespoon chopped fresh tarragon
- 1/2 cup mayonnaise
- 2 teaspoons fresh lemon juice
- 1 pinch cayenne pepper, or to taste
- Crush garlic and salt together in a mortar with a pestle; add tarragon and continue crushing with the pestle until tarragon is pulverized.
- Stir mayonnaise and lemon juice into garlic-tarragon mixture until aioli is smooth; season with cayenne pepper.