Heat oil on sauté function; soften the onion and garlic for 2 minutes
Add the celeriac, potato, sprinkle in the Coq au Vin blend, stir in the vegetable broth
Secure the cooker lid, seal pressure valve; cook on Manual/Pressure for 8 minutes.
Vent with Quick Pressure Release. Blend to a creamy consistency using an immersion blender.
Stir in the cream and serve topped with hazelnuts, drizzled with a little truffle oil.