Preheat the oven to 375ºF / 190ºC.
Mix together the flour, one and a half teaspoons of the turmeric, and one teaspoon of salt in a bowl, then sprinkle over both sides of the chicken.
Heat two tablespoons of olive oil in a skillet and cook the chicken over a medium heat until golden brown on both sides. The chicken will not be fully cooked at this stage and will finish cooking in the oven.
Remove the chicken from the skillet and set aside.
Add another two tablespoons of olive oil to the skillet and cook the onion until softened.
Add in the cream, mustard, honey, pepper, thyme, and remaining salt and turmeric. Bring to a simmer, then add the chicken back into the skillet with the sauce.
Place in the oven for around 20–25 minutes until the sauce has thickened and the chicken is cooked through. (160ºF / 71ºC internal temperature with a thermometer).
Once cooked, remove the thyme sprigs.
Serve with white rice.