Add the rice and stir to combine, coating the rice.
Pour the chicken stock into the pressure cooker bowl and combine.
Securely place and seal the lid onto the pressure cooker. Switch the control dial to setting 3 on the Kambrook manual pressure cooker, or 12 minutes (White Rice Setting) on the Kambrook digital pressure cooker, and allow to cook.
Release the pressure from the pressure cooker by turning the pressure release valve to the right. Add the rest of the butter, the sundried tomatoes and stir to combine. Season to taste.