Briefly blanch the baby kale for 30-45 seconds, then shock in ice water to preserve its vibrant color and remove any bitterness while maintaining tender texture in your finished pesto.

Lightly toast pecans in a dry skillet for 2-3 minutes before blending to intensify their nutty flavor and add rich depth that elevates the entire pesto.

Reserve lemon zest separately and fold it in at the very end after blending to preserve its bright, aromatic oils and prevent bitterness from extended processing.

Add olive oil slowly while pulsing the food processor rather than adding it all at once to create a creamy, well-emulsified pesto that clings beautifully to pasta and proteins.

Season incrementally with kosher salt and black pepper, tasting between additions, since baby kale's earthiness requires careful balance to avoid over-salting the delicate pesto.