In a small bowl, add flour.
Dip chicken pieces in flour to get an even coat.
In an oiled skillet over medium heat, place chicken pieces and cook until golden brown.
Remove and set aside.
Add shallots to skillet and cook for 3 minutes, stirring often.
Add garlic, mushrooms, potatoes, and rosemary, and cook for another 2 minutes.
Add wine and bring to a boil.
Allow to simmer and reduce for 1 minute.
Transfer all ingredients into a slow cooker and pour in the stock.
Add chicken and bay leaf to slow cooker, cover and cook on low for 5-6 hours.
Season as necessary, serve warm.