Mix the ketchup, tomato sauce and curry then heat in a small pan on low.
While the sauce is heating, cut the brats into bite size slices. Put them in a pan and heat.
Serve and Enjoy!
Note: I didn't really measure the curry. I love curry and I season to taste.
Note: remember that brats come indifferent varieties. Which one you use could affect the overall taste and flavor of your meal :)