Try this Parmesan Lemon Pasta recipe.
Pressure-cooking pasta in a broth and dairy base relies on starch gelatinization occurring simultaneously with liquid absorption, completely altering how a traditional sauce emulsifies. While classic Roman pasta preparations build emulsions through the mechanical agitation of starchy pasta water meeting aged cheeses off the heat, electric pressure cookers utilize sealed steam pressure to force starches directly into the cooking liquid while the noodles hydrate. This specific technique traps volatile citrus compounds from the lemon zest inside the vessel rather than letting them escape into the kitchen air, preserving a brighter flavor profile despite the high heat of pressure cooking.
Mastering this closed-vessel method yields a glossy, clinging sauce without requiring a separate pot for boiling noodles. Proper temperature control during the final thickening stage ensures the half-and-half and grated Parmesan integrate smoothly without breaking into oily separation.