Portion control may be a problem, as this flavored mayo is so tasty that folks will want more. Feel free to double the recipe and use it just like plain mayonnaise.
Stir together broth and saffron; let stand 5 minutes. Stir together mayonnaise and garlic in a small bowl. Whisk in broth mixture, 2 Tbsp. at a time, until smooth and mixture is desired consistency.
*Bottled clam juice or chicken broth may be substituted.