Broccoli-Cheese Soup

This recipe comes from America’s Test Kitchen. It’s a very delicious broccoli soup, the trick is overcooking the broccoli (right? I know!) but the color is brought back by adding fresh spinach. Ingredients 2 tbs. unsalted butter 2 lbs. broccoli, florets roughly chopped into 1-inch pieces, stems trimmed, peeled, adn cute into 1/4-inch-thick slices. 1…