Prepare the Ice Bath: Before you begin cooking, prepare an ice bath. Fill a large bowl with cold water and a generous amount of ice. Set it aside near your stove. This is the crucial step for achieving crisp-tender, vibrant green asparagus.

Trim the Asparagus: Wash the asparagus spears thoroughly under cold running water. Snap off the tough, woody ends of each spear. They will naturally break at the point where the tender part begins. You can also line them up on a cutting board and slice off the bottom 1-2 inches.

Blanch the Asparagus: Bring a large pot of salted water to a rolling boil. Add the trimmed asparagus spears to the boiling water. Cook for 2-4 minutes, depending on the thickness of your spears. Thin spears may only need 2 minutes, while thicker ones might need 3-4. The goal is for them to be bright green and “crisp-tender”—tender enough to be pierced with a fork but still with a slight bite.

Shock the Asparagus: Using tongs, immediately remove the asparagus from the boiling water and plunge them directly into the prepared ice bath. This process, called “shocking,” instantly stops the cooking process and locks in that beautiful, vibrant green color. Let them sit in the ice water for about 2-3 minutes until completely chilled.

Dry and Chop: Remove the asparagus from the ice bath and lay them on a clean kitchen towel or paper towels. Pat them completely dry; this is important to ensure the vinaigrette clings to them properly. Once dry, cut the spears into bite-sized pieces, about 1-2 inches long.

Make the Vinaigrette: In a small bowl or a jar with a tight-fitting lid, combine the extra virgin olive oil, fresh lemon juice, Dijon mustard, minced garlic, sea salt, and black pepper. Whisk vigorously or shake the jar until the dressing is emulsified and creamy.

Assemble the Salad: In a large serving bowl, combine the chopped, chilled asparagus pieces and the thinly sliced red onion. Drizzle about two-thirds of the vinaigrette over the top and gently toss to coat everything evenly.

Garnish and Serve: Just before serving, gently fold in the crumbled feta cheese and the toasted almonds. Drizzle with the remaining vinaigrette if desired. Garnish with fresh chopped dill or parsley for an extra pop of color and flavor. Serve chilled.