Cheese sauce mix together 3 tbsp melter butter and 1/2 cup of flour together in a crock pot and once combined add the heavy cream and buttermilk and the shredded cheddar and mozzarella whisk together until combined add the paprika the onion powder and the garlic powder whisk together and then let cook on low til cheese melts and sauce is rich and creamy and all cheese is melted about 20 minutes