Make the garlic scape pesto:
Taste your garlic scapes raw. If they're very strong, cover them in boiling water for 30 seconds. Drain and proceed.Chop garlic scapes into 1-inch pieces. Add to food processor.
Add parmesan cheese, and process until a fine pesto texture is attained. You may want to add more olive oil, if you prefer your pesto more runny than chunky.Taste and season with lemon juice, salt and pepper, as desired.