Blanch broccoli for just 2-3 minutes until bright green and tender-crisp, then immediately shock in ice water to preserve color, nutrients, and prevent overcooking that would create a bitter, sulfurous taste.

Lightly toast your almonds in a dry pan for 2-3 minutes before adding to the food processor to unlock their nutty flavors and create a richer, more complex pesto than raw almonds would provide.

Pulse in fresh basil leaves at the very end and process for only a few seconds to prevent bruising and oxidation, which turns the pesto brown and creates an unpleasant bitter flavor.

Whisk your lemon juice with olive oil separately before drizzling into the pesto at the end to create a stable emulsion that prevents the sauce from separating and improves overall texture and flavor distribution.

Start with a pinch of red pepper flakes and taste before adding more—the heat intensifies over time, so you can always add more but cannot remove it once the pesto is finished.