Make Ahead White Wine Gravy

Bahan-bahan (12 porsi)

• 6 tablespoons salted butter
• 2 medium shallots, thinly sliced
• 2 tablespoons chopped fresh sage
• 1/3 cup all-purpose flour
• 3 cups low-sodium chicken or turkey broth
• kosher salt and black pepper
• pan drippings from herb roasted turkey ((optional) )
• 1 cup dry white wine, such as Sauvignon Blanc or Pinot Grigio