Spray a 6.5-quart slow cooker with cooking spray. Then add in the fresh baby spinach (it will fill your entire slow cooker—it’s ok it will shrink down to nothing).

In a bowl, mix together the milk, heavy cream, minced garlic, salt, and black pepper. Then pour on top of the spinach. Place the lid on top and cook on high for 2 hours. At the one-hour mark, give the spinach a stir and then place the lid back on the slow cooker.

Once the spinach is done, mix together the cornstarch and water in a separate bowl. Then mix into the spinach and continue to mix until the sauce thickens. Serve out of the slow cooker or pour into a bowl and enjoy.