Asparagus Soup (Zuppa Di Asparagi)

Zuppa di asparagi is the spring cousin of stracciatella. Same egg-and-cheese thickening trick, but here asparagus carries the show instead of just spinach or escarole. The Italian grandmother move that turns a thin broth into something silky and substantial.

The asparagus gets a quick sauté in olive oil and garlic before any liquid hits the pot. That browning step builds a base of caramelized, slightly nutty flavor that boiled-from-the-start asparagus will never deliver. Don’t skip it.

The egg-cheese addition (called “stracciare," meaning to tear into rags) is the technique that defines this soup. Whisked together, then tempered with hot soup, then streamed back into the pot with constant stirring. Done right, the eggs form delicate ribbons through the broth. Done wrong, you get scrambled eggs floating in soup.

The pot must come off boiling heat before the egg mixture goes in. Eggs scramble at 158°F (70°C). Hold the soup at a bare simmer or just below.

Serving over a slice of toasted Italian bread is the part that makes this a meal. The bread soaks up the broth and softens into something between bread soup and dumpling.

Pro Tips

• Snap the asparagus where it bends naturally to find the tender stem. Anything below that point is woody and won’t soften.
• Use a Microplane on the Parmigiano. Coarse grates clump in the eggs and won’t melt evenly.
• Pecorino Romano in place of Parmigiano gives a sharper, saltier edge.
• Drizzle a little extra-virgin olive oil over each bowl right before serving for body and aroma.

Variations

• Stir in a handful of baby spinach at the end for added green.
• Use day-old crusty sourdough in place of Italian bread for a chewier base.
• Add a pinch of red pepper flakes with the garlic for gentle background heat.