Instructions

1. Turn pressure cooker to the \"sauté\" setting.
2. Melt butter (3 tablespoons) and sauté onion, celery, and carrots, seasoned with salt and pepper to taste, for about 5 minutes, until softened.
3. Add the split peas, chicken stock (6 cups), diced cooked ham), and the 3 bay leaves.
4. Cover pressure cooker and set to manual, high pressure for 15 minutes.
5. Allow the pressure to naturally release for 10-15 minutes.
6. Taste and adjust seasonings if necessary. Serve immediately, or store in your refrigerator for up to 1 week or freezer in an airtight container for up to 6 months.