Watch Video Ingredients 3 tbsp of butter2 medium sized onions, diced8 cloves of garlic, diced4 red chillies, chopped1 tbsp of chilli flakes140g of tomato paste1 cup of pasta water3 cups of full cream milksalt, to taste2 cups of shredded mozzarella cheese500g of cooked rigatoni Method 1. Melt the butter and sauté the onions, garlic and chillies2. Once the onions start turning golden brown, add the tomato paste, pasta water, full cream milk, salt and shredded cheese and mix3. Once the sauce comes to a boil, add the cooked rigatoni and mix well4. Enjoy! Source : www.instagram.com