Poutine with wild mushrooms and beer brown sauce

Ingredients

• 3 lb of small yellow potatoes skin on, cut into fries
• 3 tablespoons canola oil
• Salt and freshly ground pepper
• 1 yellow onion, finely chopped
• 1/4 cup olive oil
• 6 tablespoons butter
• 227g creminis mushrooms, sliced
• 227g white mushrooms, sliced
• 113g shiitake mushrooms, sliced
• 2 garlic cloves, finely chopped
• 1 tablespoon fresh thyme
• 1/2 cup Raftman Beer by Unibroue
• 1/4 cup flour
• 3 cups veal stock
• 400g cheese curds
• Fresh chive, chopped