Pour pasta into the bottom of your instant pot. Add in the chicken broth. Try to cover most of the pasta with the chicken broth. Pour in the olive oil. Place chicken pieces on top. Salt and pepper the chicken.
Cover the pot and secure the lid. Make sure valve is set to “sealing.” Set the manual button or pressure cook button (depending on your instant pot model) to 3 minutes for al dente pasta and 4 minute for pasta that is a little more soft. Let the pressure release naturally for 5 minutes and then release the rest of the pressure by moving the valve to venting. Remove the lid.
Turn the pot to the saute setting. Stir in the vinegar, basil, tomatoes and cheese. When cheese is melted turn the pot to the keep warm setting.
Serve the pasta as soon as possible and enjoy!
