If you notice soup isn't thickening up how you'd like while cooking you can let it simmer uncovered for the last 30 minutes.
Instant Pot Directions:
- Press "saute" setting on Instant Pot. Add oil, celery and onion, saute 3 minutes, add garlic and saute 1 minute longer. Press "cancel" on the Instant Pot.
- Pour in broth, 2 cups water (instead of the 4 cups listed), split peas, carrots, thyme, bay leaves and season with salt and pepper to taste. Add ham bone.
- Cover and press "manual" mode then set to 15 minutes.
- Once time is up allow pressure to release naturally for 15 minutes, then quick release any remaining pressure.
- Shred ham from bone into pieces and return to soup.