01 - Fill a large pot with water, season generously with salt, and bring to a rolling boil over high heat.
02 - Add potato gnocchi to the boiling water and cook according to package directions, usually 2 to 3 minutes, until they float.
03 - While gnocchi is cooking, combine basil pesto and olive oil in a large skillet. Warm gently over low heat, ensuring the sauce does not boil.
04 - Using a slotted spoon, transfer cooked gnocchi directly to the skillet with warm pesto. Reserve several tablespoons of cooking water.
05 - Gently toss gnocchi in the pesto sauce to coat evenly, adding reserved cooking water as needed for a silky consistency.
06 - Stir in grated Parmesan cheese until distributed and sauce is glossy.
07 - Plate gnocchi immediately and garnish with additional Parmesan, fresh basil leaves, and freshly cracked black pepper.