Brew the coffee. Make 6–8 ounces of strong coffee or pull 1–2 shots of espresso.
Set aside while you prepare the pumpkin mixture.
Warm the milk. In a small saucepan over medium heat, add 1 cup unsweetened almond milk. Warm until steaming but not boiling.
Add pumpkin and spices. Whisk in 2 tablespoons pumpkin puree, 1/2 to 1 teaspoon pumpkin pie spice, a small pinch of sea salt, and 1/2 teaspoon vanilla extract.
Sweeten to taste. Stir in 1–2 teaspoons of your keto sweetener. Taste and adjust the sweetness and spice level to your liking.
Froth the mixture. Use a handheld frother, whisk vigorously, or blend for 10–15 seconds until slightly foamy.
Avoid boiling; gentle heat keeps it smooth.
Combine with coffee. Pour the hot coffee into a large mug, then top with the pumpkin-spiced milk. Stir gently to blend.
Finish and serve. Add a dollop of sugar-free whipped cream if you like, and dust with a pinch of cinnamon. Sip while warm.