Cut the onion in half. Peel the garlic. Roughly cut the celery.
Place halved onion, garlic, celery, butter, and oil into the Thermomix bowl.
Chop for 15 seconds / speed 5. Scrape down the sides.
Sautee for 5 minutes / 100 degrees / speed 1.
Add rice and wine. Cook for 2 minutes / 100 degrees / reverse / speed 1.5 and Measuring Cup (MC) off.
Add stock and cook for 15-20 minutes / 100 degrees / reverse / speed 1.5 and MC off.
Towards the end, taste the rice & adjust to taste. Cook for longer if you prefer a softer texture. Add salt & pepper to taste.
When it's finished cooking, let rest for 5 minutes loosely covered.
Then stir in parmesan & the remaining butter. Serve with fresh basil.
