Candied Walnut, Pear, and Leafy Green Salad

INGREDIENTS

1/3 cup

sugar

2/3 cup

chopped walnuts, toasted

Cooking spray

1/2 tsp

kosher salt, divided

2 tbsp

white balsamic vinegar

1 1/2 tsp

Dijon mustard

3 tbsp

extra-virgin olive oil

1 tbsp

capers, chopped

4 cups

torn green leaf lettuce

4 cups

chopped romaine lettuce

4 cups

chopped radicchio

ripe red Anjou pear, thinly sliced

1/4 tsp

freshly ground black pepper