Make Ahead Tip: Cover and refrigerate the dressing (Step 1) for up to 1 week.
Crème fraîche is a tangy, thick, rich cultured cream commonly used in French cooking. Find it in the dairy section of large supermarkets, usually near other specialty cheeses. Sour cream can be used as a substitute, or you can make your own lower-fat version by combining equal portions of reduced-fat sour cream and nonfat plain yogurt.
Mâche (“mosh”), also known as lamb's lettuce or corn salad, is a tangy green that resembles watercress. Popular in Europe, it is enjoyed in the first salads of spring. Look for it in specialty stores, large supermarkets and farmers' markets.
173 calories; protein 9.9g; carbohydrates 3.9g; dietary fiber 1.7g; sugars 1.6g; fat 13g; saturated fat 7g; cholesterol 29.6mg; vitamin a iu 3132.5IU; vitamin c 25.4mg; folate 66.8mcg; calcium 81.5mg; iron 1.1mg; magnesium 22.5mg; potassium 324.9mg; sodium 437.3mg; thiamin 0.1mg.