Instructions:
- Bring a large pot of heavily salted water to a rolling boil. Prepare an ice bath (bowl of ice and cold water) nearby.
- Add the trimmed green beans to the boiling water. Cook rapidly for 3–4 minutes until they turn bright green and are tender-crisp (al dente).
- Immediately transfer the beans using a slotted spoon directly into the ice bath for 1 minute to stop the cooking process. Drain the beans thoroughly and set aside.
- In a large skillet over medium heat, add the sliced almonds. Toast gently for 2–3 minutes, stirring constantly, until fragrant and lightly golden. Remove almonds from the pan and set aside.
- Reduce the heat to medium-low. Add the butter and olive oil to the same skillet. Allow the butter to melt and foam, then subside until it turns a light golden brown (brown butter).
- Add the minced garlic to the brown butter. Sauté quickly for 30–60 seconds until fragrant, ensuring the garlic does not burn.
- Add the blanched and dried green beans back into the skillet. Toss vigorously for 1–2 minutes to coat the beans completely in the garlic butter.
- Remove the pan from the heat. Stir in the toasted almonds, lemon zest, and season generously with kosher salt and black pepper to taste.
- Transfer the Savory Garlic Butter Green Beans immediately to a serving dish and garnish with fresh parsley, if using.