Hands down, the only thing my hubby will eat on Thanksgiving!

3 pounds turkey breast, boneless and skinless
1 cup chicken broth
1/2 cup white wine (optional)
1 onion, finely chopped
3 cloves garlic, minced
1 teaspoon dried thyme
1 teaspoon dried rosemary
Salt and pepper to taste
1/4 cup all-purpose flour
1/4 cup butter
1 cup heavy cream