Season with salt, pepper and oregano - mix.
And now you have 3 options:
- put the thighs back in the pan with sauce and simmer for about 1 hour, with a lid;
- put the thighs in a deep baking tray with a lid, pour the sauce over the meat, put the lid on and put everything in the oven for 1 hour at 200 degrees;
- or see my version below - about the same, if you do not have a baking tray with a lid, or a good size.