Ingredients
Equipment
Method
- Bring a large pot of salted water to a boil. Cook shell pasta to al dente according to package directions.
- While pasta cooks, melt butter in a large, deep skillet over medium heat. Add minced garlic and sauté for 30 seconds until fragrant.
- Add heavy cream to the skillet, bring to a gentle simmer, and let reduce slightly for 3 minutes. Stir in 1/2 tsp salt and half of the black pepper.
- Crucial step: Before draining, reserve about 1.5 cups of starchy pasta water.
- Drain pasta and add immediately to the cream sauce in the skillet. Reduce heat to low.
- Stir in lemon juice, half the lemon zest, and 1/2 cup reserved pasta water. Toss vigorously.
- Remove pan from heat. Add Parmesan cheese in batches, tossing constantly to melt. Add more pasta water as needed to create a glossy, smooth sauce that coats the shells.
- Serve immediately garnished with remaining lemon zest and generous amounts of cracked black pepper.
Notes
Use freshly grated cheese from a block, not pre-shredded, to ensure a smooth sauce without clumps. Serve immediately as the sauce thickens quickly upon cooling.