Cream of Celery Soup | America's Test Kitchen

Ingredients

• 4 tablespoons unsalted butter
• 12 celery ribs , chopped
• 1 pound russet potatoes , peeled, quartered, and sliced thin
• 2 onions , chopped
• 2 tablespoons sugar
• 2 teaspoons dried sage
• Salt and pepper
• 2 tablespoons all-purpose flour
• 6 cups chicken broth
• 1 bay leaf
• 1/2 cup heavy cream