Prep the chicken first! You can make this a day or two before - even just marinating it or marinating it and grilling it. Place the chicken into a baking dish or resealable bag. Whisk together the olive oil, vinegar and a big pinch of salt and pepper.: The scent of the vinaigrette at this stage should be tangy and herbaceous, with the oil smoothing the sharp edge of the balsamic vinegar . I like to use my hands to pat the marinade into the surface so the chicken is fully coated, which helps flavor penetrate. A common misstep is skimping on seasoning; under-seasoned meat will taste bland after grilling. If you notice the marinade pooling too heavily on one side, turn the bag or flip the breasts so the flavor distributes evenly. Using a resealable bag also minimizes mess and helps the marinade cling to the meat for better flavor absorption.
Marinate the chicken for at least 30 minutes, or even overnight. While it marinates, I make the almonds and the dressing below. When ready to grill, preheat your grill to the highest setting. Once the grill is hot, add the chicken (let the marinade run off into the dish) and grill for about 5 to 6 minutes per side, or until the internal temperature reaches 165 degrees F. Once the chicken is done, let it rest for 5 to 10 minutes. Then slice it.: As the chicken soaks in the marinade, you should smell a mellow sweetness from the balsamic and a gentle olive oil aroma, promising deeper flavor. Preheating to a high setting gives you a quick sear that forms a caramelized crust, locking juices inside. Use an instant read thermometer to ensure it hits 165 degrees F without overcooking. Resting is crucial, because slicing immediately will cause flavorful juices to escape, making the meat dryer. One error I often see is flipping too frequently; this prevents proper searing and reduces the smoky flavor you want.
Assemble the salad with the spring greens. Top with the chicken, blueberries, avocado, pickled onions, cucumbers and almonds. Drizzle with the dressing and serve!: When assembling, aim for a balanced spread so each forkful contains a bit of everything. The greens should look vibrant and slightly glossy from the dressing, while the sliced avocado should be creamy and unbruised. Scatter the blueberries so their juicy bursts contrast the smokiness of the chicken . A common mistake is overdressing; add in stages and toss gently to avoid wilting the greens. Serve immediately so the almonds retain their crunch and the avocado stays fresh.
Combine all the ingredients in a blender until smooth and blended. You can make this a day ahead of time and store it in the fridge, sealed in a container or jar.: The dressing should be glossy and slightly thick, which helps it cling to the leaves and toppings. As the blender works, you will notice the color become a unified amber and the aroma shift to a balanced sweet and tangy profile. Chilling it for a few hours lets flavors meld and taste mellow; if it tightens up in the fridge, whisk before using. A frequent oversight is failing to taste and adjust; always check for balance between acid and sweetness before serving.
Place the almonds in a nonstick skillet over medium heat. Stir in the sugar and herbs and cook, stirring often, until the sugar melts and is caramely, coating all of the almonds - about 6 to 8 minutes. Don’t take your eyes off of this as they can burn quickly! Transfer the almonds to a piece of parchment paper to let them cool. Break them into pieces if they are clumped.: The kitchen will fill with the warm, toasty aroma of nuts and caramel as the sugar melts and coats the marcona almonds . Stirring constantly ensures even caramelization and prevents hot spots where sugar burns instantly. Once cooled on parchment, they will harden into glossy shards that add a sweet crunch to the salad. The most common error is letting the pan run too hot, which leads to bitter, burnt sugar; keep the heat steady and attentive. If they clump, gently break them apart with the back of a spoon after they cool to restore the crunchy texture.