Roasted Asparagus with Pine Nuts

2 tablespoons pine nuts

1 1/2 pounds asparagus

1 large shallot, thinly sliced

2 teaspoons extra-virgin olive oil

1/4 teaspoon salt, divided

Freshly ground pepper to taste

1/4 cup balsamic vinegar

Preheat oven to 350° F. Spread pine nuts in a small baking pan and toast in the oven until golden and fragrant, 7 to 10 minutes. Transfer to a small bowl to cool. Increase oven temperature to 450° F. Snap off the tough ends of asparagus. Toss the asparagus with shallot, oil, 1/8 teaspoon salt and pepper. Spread in a single layer on a large baking sheet with sides. Roast, turning twice, until the asparagus is tender and browned, 10 to 15 minutes. Meanwhile, bring vinegar and the remaining 1/8 teaspoon salt to a simmer in a small skillet over medium-high heat. Reduce heat to medium-low and simmer, swirling the pan occasionally, until slightly syrupy and reduced to 1 tablespoon, about 5 minutes. To serve, toss the asparagus with the reduced vinegar and sprinkle with the pine nuts.