This Starbucks pumpkin spice sauce recipe is the holy grail of the fall season especially if you love making your own Starbucks pumpkin spice latte. It is made with simple ingredients and will be ready in no time. Use this to make pumpkin spice cold brew, pumpkin spice sweet cream, pumpkin spice cold foam, or the ultimate pumpkin spice latte that we all love so much! This simple recipe is easy and is made with only 6 ingredients that you might already have in your pantry.