Nonstick cooking spray, for the bundt pan
3 tablespoons unsalted butter
1/2 cup turbinado sugar
1 tablespoon ground cinnamon
One 16.3-ounce tube refrigerated biscuits, each biscuit cut into quarters
1/2 cup confectioners' sugar
Settings may vary on your Instant Pot® depending on the model. Please refer to the manufacturer's guide.