Season chicken with salt and pepper.
Place a medium or large pan on medium-high heat. Add olive oil.
Once olive oil is ready, start browning the chicken. Leave some space in between the pieces of the chicken; browning in batches is ok.
Place all the browned chicken back into the pan, lower the heat to medium, add garlic and mix.
Once the garlic is fragrant, turn the heat up to medium-high and pour the white wine.
Let the wine completely evaporate and mix while scraping bits that stuck at the bottom of the pan.
Add tomatoes, salt, pepper, peperoncino, and bay leaves. Mix to combine.
Cover with a lid and bring to a boil.
Adjust heat to medium-low and simmer until the chicken is cooked. Mix periodically.
Serve, with fresh parsley as a garnish, if preferred.