To make this Cinna-Bun Cake gluten-free. Substitute the all-purpose flour. With a gluten-free flour blend. Ensure that your baking powder is also gluten-free. You might need to add a teaspoon of xanthan gum. To help bind the ingredients. And give the cake structure. This adjustment keeps the cake moist. And flavorful. While being safe. For those with gluten sensitivities. Enjoy the same delicious taste. And texture. Without the gluten!