The dumplings’ deliciousness masks their simplicity: just cornmeal, flour, flaxseed, and herbs bound by yogurt and oil. (Traditional matzo balls do not include flour, cornmeal, or baking powder.) Flaxseed serves double duty by binding the dumplings and adding healthful fiber. Ground flaxseed is easy to find at most supermarkets (usually near the all-purpose flour) and health food stores. To make these dumplings really puff up while they cook, keep the pot covered—no peeking! And since vegetable broth is front and center in this soup, it’s worth seeking out a quality one, or making your own from scraps of carrot peels, onions, and celery. Serve this springtime fare with lemon wedges for an extra pop of flavor, and here is a no-waste tip: whenever cooking with fennel bulb, save the fronds to use as a garnish. RELATED: 22 Vegan Soup Recipes Using Your Favorite Seasonal Vegetables