Preheat the oven to 350°F (175°C) and line a standard muffin tin with 9 parchment or silicone liners.
In a medium mixing bowl, whisk together the pumpkin puree, eggs, maple syrup, olive oil, vanilla extract, and apple cider vinegar until completely emulsified.
Sift the cassava flour, baking powder, ground cinnamon, and salt into the wet mixture.
Whisk the batter until smooth and no dry lumps remain, ensuring the cassava flour is fully hydrated.
Distribute the batter evenly among the 9 prepared muffin liners, filling each approximately three-quarters full.
Bake for 20 to 22 minutes, or until the tops are firm to the touch and a toothpick inserted into the center comes out clean.
Remove the cupcakes from the oven and allow them to cool in the pan for 5 minutes before transferring to a wire rack to cool completely.
For the frosting, whisk the chilled coconut cream, 1 tablespoon maple syrup, and tapioca flour until stiff peaks form, then pipe onto the cooled cupcakes.