Ingredients:

  • 4 tbsp (57g) unsalted butter, melted
  • 3 cups (710ml) whole milk
  • 1 cup (240ml) heavy cream
  • 1 tsp (5g) garlic powder
  • ½ tsp (3g) smoked paprika
  • 1 tsp (6g) salt
  • ½ tsp (3g) cracked black pepper
  • 3 cups (340g) sharp cheddar cheese, freshly shredded
  • 1 cup (115g) Gruyère or Mozzarella, freshly shredded
  • ½ cup (50g) Parmesan cheese, grated
  • 1 lb (450g) medium pasta shells, uncooked

Instructions:

  1. Whisk together the melted butter, whole milk, heavy cream, garlic powder, smoked paprika, salt, and pepper in the slow cooker basin. Note: Ensure the spices are fully incorporated so you don't get a paprika clump.
  2. Stir in the uncooked pasta shells. Ensure they are mostly submerged in the liquid to avoid dry spots.
  3. Cover the pot with the lid.
  4. Cook on High for 2 hours (or Low for 4 hours).
  5. Check the pasta 30 minutes before the timer ends. It should be al dente, meaning it still has a slight bite.
  6. Turn the slow cooker to the 'Warm' setting immediately. Note: This prevents the sauce from boiling over once the cheese goes in.
  7. Stir in the shredded cheddar, Gruyère, and Parmesan.
  8. Gently fold the cheese into the pasta until the sauce is glossy and thick.
  9. Let the dish rest for 10 minutes before serving. Note: This allows the sauce to set and cling to the shells.