How to Make It
Preheat the oven to 375°. In a small pie plate, toast the almonds for 8 minutes, until fragrant. Toss with 1/2 teaspoon of the almond oil and sprinkle with salt.
In a mini processor, puree the chopped nectarine. Transfer the puree to a small bowl and add the shallot, vinegar and 1/2 teaspoon of salt. Let stand for 5 minutes, then whisk in the olive oil and the remaining 1 tablespoon of almond oil. Season with salt and pepper.
Put the sliced nectarines and the blackberries in a medium bowl. Drizzle on one-third of the vinaigrette and season with salt and pepper. In a large shallow bowl, season the arugula with salt and pepper and toss gently with the remaining vinaigrette. Gently toss in the dressed fruit. Garnish with the almonds and serve immediately.