Sausage Gravy

Bahan-bahan (6 porsi)

• 2 tablespoons unsalted butter
• 1 pound bulk breakfast sausage (turkey or pork)
• 1/2 teaspoon ground black pepper (plus additional to taste)
• 1/4 teaspoon dry rubbed sage (plus additional to taste)
• 1/4 teaspoon kosher salt
• 1/4 cup all-purpose flour
• 2 1/2 cups milk (I used 1%; use whole milk for more richness)
• Breakfast Biscuits (for serving)