Add the chicken thighs to the crockpot along with chicken broth (enough broth to cover the chicken thighs by about 2 inches). Cook on high for 3-4 hours, or on low for 6-8 hours until chicken is tender and moist. Chicken should reach an internal cooking temperature of 165°F.
About 30 minutes before the chicken is done, preheat oven to 375°F.
Place the squash on a cutting board and slice off both ends. Remove the skin with a vegetable peeler. Slice the butternut squash in half horizontally. Then slice both halves vertically down the center. Using a spoon, scoop out the seeds and stringy parts in the center of each of the 4 individual pieces. Slice each of the 4 pieces into half-moon shapes/wedges, approximately 1 inch thick.
Place the butternut squash on a lined sheet pan and drizzle with olive oil. Roast for approximately 20-25 minutes, or until it’s soft enough to squish between your fingers.
Remove the thighs from the slow cooker and rest on a chopping board for 5-10 minutes, so the juices have time to reabsorb, keeping the chicken juicy.
While the chicken rests, make the peanut butter sauce by adding peanut butter, water, apple cider vineger, coconut aminos, and garlic powder into a small bowl. Whisk together until smooth, and well combined. It should drip easily off of a spoon. If the consistency is too thick, add more water.
Plate the chicken and squash together, drizzling the sauce on top of the chicken. See the notes section below for how to serve this to babies depending on the texture phase your baby is ready for.