In a saucepan over medium heat, whisk together pumpkin puree, brown sugar, maple syrup, pumpkin pie spice, cinnamon, vanilla, and salt until smooth.
Slowly pour in the milk while whisking and heat until steaming and small bubbles form around the edges, about 3 to 5 minutes. Do not boil.
Froth the pumpkin milk with a milk frother or vigorously whisk until slightly foamy.
Divide the hot espresso between two mugs. Pour the pumpkin milk over the espresso and stir gently to combine.
Top with whipped cream and a light dusting of nutmeg. Serve immediately.
Notes
For a dairy-free latte, use unsweetened almond or oat milk and skip the whipped cream. Adjust sweetness to taste. Leftover pumpkin puree can be refrigerated for up to 5 days or frozen in ice cube trays for future lattes.