Be sure to zest the lemons before removing the juice.
The sauce will be slightly “creamy” without the need for adding heavy cream. This makes for a lighter, but delicious pasta sauce. The secret is the combination of the starchy pasta water with the butter and Parmesan. But if you want to make it decadent, add a splash of cream when you add the lemon juice.
This pasta is also wonderful with chicken (as pictured), shrimp, or other seafood. For the version in the photo, I sautéed chicken thighs in olive oil, lemon juice, salt, and pepper. (You’ll need an extra lemon.) Then I cut the chicken into bite-sized pieces and tossed them into the pasta and sauce mixture before serving.