Sausage Gravy - steve sartino : i am always thirsty

Ingredients

• ¼ cup all-purpose flour, or instant flour like Wondra
• 1 teaspoon freshly ground black pepper, or to taste
• 2½ cups whole milk
• Salt to taste
• ground sage to taste (optional)
• ground fennel to taste (optional)
• ground red pepper to taste