Add 2 cups of water into the pot.

Break the noodles into 3rds and add in the pot. 

Empty the entire jar of spaghetti sauce into the pot. Pour it evenly over the noodles but do not stir. Stirring is not needed yet.  (I use a spicy pepper sauce for a bold flavor)

Place and seal the instant pot lid. Make sure the steam valve is also closed. 

Set the IP to manual or pressure cook for a time of 10 minutes.

Once it is done, do a quick release, stir, and serve!

***If you need to make a larger serving size, I would not double the recipe, the noodles will come out too soggy. Instead I would repeat the above recipe a second time.