Brew your coffee a bit stronger than usual. Pour the hot coffee into a heat‑safe glass or jug and let it cool to room temperature.
In a small jar, glass, or bowl, add the pumpkin purée, sugar or syrup, vanilla, cinnamon, nutmeg, ginger, and a tiny pinch of salt. Stir until the mixture looks smooth and glossy.
Pour your cooled coffee into a larger glass or small jug with enough room for stirring. Add the pumpkin spice base and mix well with a spoon or a small whisk until it looks mostly combined.
Fill a tall glass with plenty of ice cubes. Pour the pumpkin‑coffee mixture over the ice, leaving space at the top for milk. Top up with your cold milk or plant milk, then gently stir so the colors swirl together into a creamy light brown.
If you want café‑style drama, add a swirl of whipped cream on top and dust it with cinnamon or pumpkin spice. You can drizzle a little maple syrup or caramel over the cream for extra autumn vibes.