In a medium heavy saucepan over medium-low heat, heat the butter and olive oil. Add the leek and cook for 5 minutes or until soft.
Add the mushrooms and cook for a further 3 minutes or until mushrooms are tender.
Add the stock, rice, Wild Porcini Salt and bring to the boil.
Reduce heat to low, cover and simmer for 13 minutes or until rice is tender and liquid is absorbed. (Avoid lifting lid until necessary)
Add parsley and Avo Smash Dukkah, toss gently and serve.