Biskuitstreifle

Biskuitstreifle is one of those quiet little German classics most American cooks have never heard of, but every Suabian grandmother knows by heart. It’s a savory baked sponge cut into thin batons and dropped into clear soup at the table. The soup softens them just enough that they hold their shape but absorb the broth like the world’s most elegant dumpling.

The batter technique is the key. Whip the egg whites separately to stiff peaks and fold them into a creamed butter, yolk, milk, and flour base. The whipped whites are what give the strips their light, almost cake-like texture so they don’t sink to the bottom of the bowl as a soggy lump. Spread the batter thin on a parchment-lined jellyroll sheet, only about a third of an inch deep, so it bakes through quickly without browning hard.

Let the slab cool fully before cutting. Warm sponge tears under the knife. Cut clean strips with a long sharp blade in single strokes for tidy edges that hold up in the bowl.

Kitchen Tips

• Add the strips to soup just before serving. They go from perfect to mushy fast.
• A clean dry bowl for whipping whites is a must. Any trace of fat will keep them from peaking.
• Bake at moderate heat, around 350F (175C), so the sponge sets without taking on color. You want a pale gold finish.
• Make the strips ahead and store airtight up to 2 days. Re-crisp briefly in a warm oven before serving.

Variations

• Stir 2 tablespoons grated parmesan into the batter for a richer, more savory garnish.
• Add a pinch of nutmeg or white pepper for a classic Central European twist.
• Serve in a clear consommé or chicken broth for the most traditional pairing.