Eggs (Uova)

Whole chicken eggs are one of the most versatile ingredients in Italian cooking. In the pasta context, they serve as the emulsifying agent in carbonara and as the binding element in fresh pasta dough.

Grading and Selection

Italian eggs are sold by weight class:

• XL: ≥73g
• L (Large): 63–73g
• M (Medium): 53–63g
• S (Small): <53g

Class L (large) is the standard for carbonara recipes. When a recipe specifies 4 eggs for 320g pasta, it assumes class L eggs at approximately 63g each — total 252g, with roughly 90% edible content (~227g net after shell).

The recipe calculator uses gram weight for pricing accuracy. One large egg ≈ 50g edible content (white + yolk, no shell) is a reliable approximation for recipe computation.

Role in Carbonara

In carbonara, the eggs are never cooked directly by heat — they are cooked by the residual temperature of the hot pasta (approximately 65°C). This produces a thick, creamy emulsion rather than scrambled eggs. The key variables:

1. Whole eggs vs. yolks only: Traditional carbonara uses whole eggs. Yolk-only versions are richer but heavier. This recipe and calculator use whole eggs.
2. Temperature control: The pan must be off heat before adding the egg mixture. Too much heat → scrambled eggs. Too little → raw sauce.
3. Pasta water: Acts as the temperature regulator and starch emulsifier. Reserve at least 200ml before draining.

Pricing Note

Eggs are priced in the recipe calculator by gram weight. The cost for a 200g egg portion (4 large eggs) at €5.00/kg is approximately €1.00 — the third-largest cost in carbonara after guanciale and Pecorino Romano.

Cost Context

At Italian supermarkets (Q1 2025), class L free-range eggs (allevate a terra, 6-pack) retail at approximately €1.90 per pack. Per-kg calculation based on average egg weight of 63g yields approximately €5.03/kg. Conventional battery eggs cost €3.00–3.50/kg; organic free-range can reach €7.00–9.00/kg. The calculator uses the free-range mid-market estimate of €5.00/kg.