Place a large pot on medium heat and drizzle with 1 tablepsoon of olive oil and 20g salted butter (plant-based butter if need be). Once melted and hot, add in the mushrooms and season with salt and pepper. Fry for 10 minutes until the mushrooms have got some colour on them and started to caramelise.
Next up, add in the shallots, carrots, minced garlic, oregano, and paprika. Stir to combine and fry for another 10 minutes until the shallots have softened.
Add in the tomato paste and fry for 2 more minutes. Follow with the flour, give it a stir, then add in the red wine. Leave to reduce for 5 minutes, then pour in the vegetable stock.
Place in the rosemary, thyme, bay leaves, and whole cloves of garlic, and leave the mushroom bourguignon to simmer for 20-30 minutes.
Once the sauce has reduced, taste and season accordingly with salt, pepper, or a little bit of sugar if you'd like a bit of sweetness. Remove the sprigs of rosemary, thyme, bay leaves and whole garlic cloves. Serve up the mushroom bourguignon with mashed potato and top with chives.