In a spacious bowl or pitcher, combine the pumpkin purée, maple syrup, pumpkin spice mix, and vanilla extract. Stir the mixture together until it is smooth and evenly blended.
Next, pour in the chilled espresso or strong coffee. Stir the pumpkin mixture and coffee until it is fully incorporated and has a consistent color and texture.
Take two glasses and fill each halfway with ice cubes to keep your latte refreshingly cold.
Carefully pour the pumpkin coffee mixture over the ice in each glass, distributing it evenly.
Add your choice of milk to each glass, adjusting the amount based on how creamy you prefer your latte. If you enjoy a frothy texture, you can froth the milk before adding it.
Using a spoon or a stir stick, gently stir the mixture to combine the milk with the pumpkin coffee blend.
If desired, top each latte with a generous dollop of whipped cream. For an added touch of flavor and presentation, sprinkle a little ground cinnamon on top of the whipped cream.
Serve your iced pumpkin spice lattes immediately, accompanied by a straw or a spoon for mixing.
Notes
Adjust the sweetness by varying the amount of maple syrup.