- Step 1
Heat the butter and olive oil in a large saucepan over medium heat until the butter has melted and starts to bubble. Add the mushrooms and cook, stirring occasionally, for 10 minutes or until softened. Add the flour and cook, stirring, for 1 minute. Gradually add the stock and water, stirring constantly until all the liquid has been added.
- Step 2
Bring to the boil over high heat, stirring.
- Step 3
Reduce heat to medium-low, cover and simmer, stirring occasionally, for 10 minutes. Add the parsley and season well with salt and pepper.
- Step 4
Serve hot with the bread rolls.