Once the 10 minutes is up, stir and place the lid on the skillet and cook for an additional 10 minutes (still on medium heat). Mix well, then add in 1 more jar of ragù. Mix well and cook for 10 additional minutes on medium-low heat, occasionally mixing. Once the pasta is cooked to al dente. Remove from the heat sprinkle a teaspoon of granulated sugar, mix well, and then add in the fresh basil. Divide evenly among plates and top with grated cheese.