Season 4 Chicken thighs with 2 pinch Sea salt and ground black pepper.
Heat 2 tablespoon Olive oil in a pan over a medium heat and add the chicken. Brown for 4 minutes, then turn over and brown for a further 3 minutes.
Put the browned chicken thighs into the slow cooker.
Add 1 Onion, 2 Carrot, 220 g Button mushrooms and 3 Garlic clove to the slow cooker.
In a jug, mix together 400 ml Chicken stock, 175 ml White wine, 200 g Chopped tomatoes, 1 tablespoon Tomato puree and 0.5 teaspoon Dried thyme.
Pour the stock into the slow cooker and carefully mix everything together, ensuring the chicken doesn't break.
Cook on high for 4 hours.
Notes
This might not look like a lot of liquid to add, but slow cooking doesn't release a lot of liquid, so if you add too much then the finished dish will have too much liquid.
If your chicken chasseur is too thin, you can add a cornflour slurry to it or even some gravy granules.