Step #3 Brown chicken on all sides in the oil, & remove this from pan.
Step #4 To the oil remaining in the pan, add the onion.
Step #5 Fry lightly for 2 mins, then add the garlic.
Step #6 Deglaze pan by stirring in the wine, which should lift off the residue of the flour from the bottom of the pan.
Step #7 Add the tarragon, & salt & pepper to taste.
Step #8 Return the chicken to the pan.
Step #9 Cook over low heat/flame for about 45 mins, or until the chicken is well done.
Step #10 When ready to serve, thicken the sauce with a cornstarch & water mixture; often this is not necessary as the initial flour coating thickens it naturally.