This essential balsamic vinaigrette recipe is tangy with a touch of sweetness. the secret is a spoonful of tasty dijon mustard, which serves as an emulsifier and makes the dressing delightfully thick. think about it have you ever wanted to know what the secret is to making restaurant-quality salads at home? its in the dressing a recipe for a basic balsamic vinaigrette for salads is one of the best tools a home cook can have in their arsenal. and fortunately, this one is as easy as combining the ingredients in a jar and giving it a good shake. ive found that.