In pot on medium high heat add olive oil, butter, minced garlic, onion and celery
Cook until they soften and onion glazes
While the onion and celery cook, combine flour, 1 TBSP spice blend and chicken in a bowl and mix to thoroughly coat chicken.
Once the onion and celery have softened, add chicken mixture to pot and brown
Add carrots
Add potatoes
Add chicken stock
Add remaining spice blend
Bring to bowl and let simmer for 2 or more hours
To thicken the stew, add cornstarch and stir to combine then serve.