3 mixed endive pear toasted Recipes

pear halves (reserve 1/3 cup juice) or 1 slice in juice (reserve 1/3 cup juice), white wine vinegar, vanilla extract, kosher salt, fresh ground black pepper, cayenne pepper, red onion, halved and thinly sliced, chopped walnuts, endive mixed salad greens , including belgian endive, radicchio, escarole, frise, chicory or 2 lbs , the same lettuce in heads cleaned of damaged leaves, cored, washed and broken in bite-size pieces