Homemade Slow Cooker or Crockpot Pumpkin Spice Lattes Recipe. An excellent idea for warm drinks for Thanksgiving in fall, Christmas in winter, cold weather, or just the holidays in general. Perfect for a crowd or large group. It's so EASY to make this at home - there's no reason to go out to Starbucks! No espresso machine required. A drip coffee maker is just fine.