Broccoli Apple Soup

Name: Broccoli Apple Soup
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: French
Ingredients: 1 large bunch of broccoli (about 3 heads with stems); 3 Tbsp butter; 1 cup of thinly sliced or finely chopped yellow or white onion; 1 good cooking apple (a non-tart apple such as Jonagold, golden delicious, McIntosh), peeled, cored, chopped; 3 cups of chicken stock; 1 cup of unfiltered apple juice or apple cider (not hard cider); 4 sprigs of lemon thyme or thyme; 2 long strips of lemon zest; 1 Tbsp chopped fresh chives for garnish