Dill weed is a herb with a pleasant, grassy smell and a warm, anise-like taste. Dill weed is commonly used to season salmon and pickles but can also be used to flavor yogurt or sour cream dips, breads, soups and more. Dill weed is an indispensable spice in many regional European cuisines and completes the spice and seasoning section of a well-stocked pantry.