Sauté the Garlic and Chicken: In a large pot, add a small amount of oil over medium heat. Add the minced garlic and cook for 1-2 minutes until fragrant. Add the chicken thighs and cook until lightly browned on all sides.
Add Butternut Squash and Water: Add the cubed butternut squash to the pot, then pour in enough water (about 4-5 cups) to cover all ingredients. Bring the soup to a boil.
Simmer Until Tender: Reduce the heat to low and let the soup simmer for 25-30 minutes, or until the chicken is cooked through and the squash is soft.
Shred Chicken: Once cooked, remove the chicken thighs and shred them using two forks. Add the shredded chicken back to the pot and stir to combine.
Season and Serve: Season with salt and pepper to taste. For extra creaminess, you can blend the squash with a stick blender.