Gather all ingredients. Begin by adding all of the dried spices to a bowl and give a quick stir to combine. Cut up the chicken thighs into bite sized pieces and add them to the bowl. Toss to coat them thoroughly with the spices.
Over medium heat, add the butter to a frying pan. Once melted, add the onion and garlic and cook for about three minutes until the onions are translucent.
Increase the temp to medium high, then add the chicken. Cook it for about 5 minutes, , stirring often, until it is almost cooked through and the outside has turned white. It’s okay if it’s not quite done; it will finish cooking in the sauce.
To the chicken, add the heavy cream, tomato paste, and erythritol. Stir well to combine everything. Reduce heat to medium low. Cover and cook for about 5 minutes.
Remove lid and add salt, if desired. Continue to cook for another 3-5 minutes or until sauce is at your preferred consistency. Plate with your favorite side and enjoy!