Make the syrup in a double batch and keep it in a sealed jar in the fridge for up to 2 weeks. It will separate slightly as it sits — just give it a good shake. For longer storage, freeze the syrup in an ice cube tray for up to 3 months and pop a cube straight into your glass. For a hot version, warm the milk, stir in 2 tablespoons of syrup, then add hot strong coffee. Use plain pumpkin puree, not pumpkin pie filling. Oat milk is the best dairy-free swap.
Keyword fall drink, homemade pumpkin spice latte, iced coffee, iced pumpkin spice latte, pumpkin syrup