1
: Measure 3 cups (750 mL) water in a liquid measuring cup; pour into the reservoir of your automatic drip coffee maker. Place coffee grounds into your coffee filter; place filter in coffee maker. Brew coffee.
2
: Meanwhile, use a blender or an immersion blender to puree remaining ingredients together until very smooth. For a frothy top, blend for a few minutes. Transfer to saucepan and heat on stove until very hot (do not boil). Alternatively, place in a large microwave-proof container and heat in microwave on high (100%), stirring every 30 seconds, just until hot (about 2 to 5 minutes). Add brewed coffee and stir to combine.
3
: Serve immediately. Garnish with whipped cream and a pinch of pumpkin pie spice, if desired.