Nectarine and Blue Cheese Salad with Plum Vinaigrette

Ingredients
Method
Bring plums and 3/4 cup water to a boil in a small saucepan. Reduce heat to medium-high and simmer, stirring occasionally and mashing plums with the back of a spoon, until plums have completely broken down, about 15 minutes.
Pour plum mixture through a fine-mesh sieve set over a small bowl, pressing on solids to extract as much purée as possible; discard solids in sieve. Let purée cool.
Add oil, vinegar, and 2 tablespoons water to purée; whisk to blend. Season dressing to taste with salt and pepper. DO AHEAD: Dressing can be made 1 week ahead. Cover and chill.
Divide greens among plates. Scatter nectarines, cheese, and almonds over, dividing equally, and drizzle some of dressing over. Season with salt and pepper.