Sweet Potato Macaroni Cheese | Nigella's Recipes | Nigella Lawson

Ingredients

• 500 grams sweet potatoes
• 300 grams pennette (or other small, short pasta)
• 4 tablespoons soft unsalted butter
• 3 tablespoons plain flour
• 500 millilitres full fat milk
• 1 teaspoon English mustard (from a jar)
• ¼ teaspoon paprika (plus another quarter teaspoon to sprinkle on top)
• 75 grams feta cheese
• 125 grams mature cheddar (plus 25g/quarter cup to sprinkle on top)
• 4 fresh sage leaves
• Maldon sea salt flakes (to taste)
• pepper (to taste)