1. Bring a large pot of salted water to a boil.
2. Peel the asparagus up to about an inch to the top blossom end (keeping the blossom end intact and untouched), then use your hands to snap off the tough bottom ends. Using a paring knife, trim the bottoms, making a clean edge. Using cotton butcher’s twine, tie 5 or 6 asparagus into individual bundles for even cooking, tying at both ends.
3. In a medium bowl, add the white wine vinegar, olive oil and salt and pepper to taste and stir to combine, then stir in the lemon zest. Add the toasted almonds, green olives, parsley, chives and dill. Stir to combine.
4. Add the asparagus bundles to the boiling water and blanch until tender, 4 to 5 minutes, depending on the size. The asparagus is done when you can insert the tip of a paring knife into the thick end of a spear and it comes out without resistance. Remove the bundles with a fork and drain on a clean kitchen towel to remove excess moisture. Remove the strings.
5. While still warm or at room temperature, arrange the spears on a serving platter. Season with fleur de sel. Drizzle with a generous squeeze of fresh lemon juice. Spoon the herb sauce over the asparagus and add a generous drizzle of olive oil. Garnish with chervil and Parmesan shavings. Serve immediately.