Broccoli and Stilton Soup

Heat oil in a large saucepan over medium heat. Add onion and cook until translucent, 5 to 7 minutes. Stir in broccoli and potatoes and cook until vegetables begin to release their moisture, 5 to 10 minutes.

Pour in chicken broth and bring to a boil. Reduce the heat and simmer until vegetables are tender, about 20 minutes. Remove from the heat and let cool slightly, about 5 minutes. Stir in cheese until melted.

Purée soup with an immersion blender or use a blender or food processor.