Place the uncooked rice, chicken breast, onions, celery, carrots, garlic, bay leaves, bouillon cubes, water, and poultry seasoning in slow cooker.
Cover and cook on high for 8 hours.
Remove the chicken and shred with forks and set aside.
Melt the butter and oil in a saucepan. Add the flour and let the mixture cook for 1 minutes.
Whisk the mixture slowly while adding in the milk. Continue to whisk until all lumps have dissolved.
continue whisking the mixture thicken and become creamy.
Add the creamy mixture to the slowooker. Stir to combien.
Add the shredded chicken back to the pot.
Season with salt, pepper, ADOBO seasoning, and cumin