Chicken in Creamy Wine Sauce

I've been wanting to make a chicken in wine sauce for a long time, and found this recipe that I really liked. Unfortunately, the milk/ cream curdled when I was adding it, and the chicken didn't come out as well as I had hoped it would. But I am definitely making it again, without the wine this time.

1 curry cut chicken
1 tbsp. olive oil
1 onion, thinly sliced
6 cloves garlic
1 package mushrooms, halved
1 cup wine
1/4 cup cream
1/2 cup milk

2 Tbsp. fresh basil leaves

Method:
Heat olive oil and brown chicken. Remove chicken and reserve drippings; keep aside.
Cook onion with garlic in reserved drippings, stirring occasionally, until onion is tender, 

Stir in mushrooms and cook until browned.
Stir in wine, cream and milk, and bring to a boil. Reduce heat to low and simmer, stirring occasionally, until sauce is slightly reduced. 

Return chicken to the skillet, cover, and cook till chicken is well done (about 20 minutes).

Stir in basil, and serve.