Vegan Pumpkin Spice Latte

It's that time of year when Starbucks brings out their Pumpkin Spice Lattes. If you're like me and love those lattes but can't go to Starbucks everyday, here is a great alternative that you can make at home.
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2 shots espresso (or coffee)
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2 tbsp pumpkin puree
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1/2 tsp pumpkin pie spice
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1 tsp maple syrup
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1 cup oat milk (or plant based milk)
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optional - top with coconut whip cream
I believe you can substitute the coffee for tea. Try a Chai tea or a black tea. That should work :)
I am not a coffee drinker. Can you substitute for tea? If so, please tell me what I candi?