To make this Luscious Walnut Banana Caramel Cake gluten-free, you can substitute the all-purpose flour with a gluten-free flour blend. Make sure to check that the other ingredients, like baking powder and baking soda, are also gluten-free. This will help maintain the cake's texture while accommodating gluten sensitivities.

To store leftover Luscious Walnut Banana Caramel Cake, wrap it tightly in plastic wrap or place it in an airtight container. It can be kept at room temperature for up to 2 days or in the refrigerator for up to a week. If you want to store it for longer, consider freezing individual slices, which can last for up to 3 months.

Absolutely! If you're not a fan of walnuts or have a nut allergy, you can substitute them with pecans or almonds. Both options will add a delightful crunch and flavor to the Luscious Walnut Banana Caramel Cake. Just make sure to chop them roughly to maintain a similar texture.

For a delightful dessert pairing with Luscious Walnut Banana Caramel Cake, consider serving it with a scoop of vanilla ice cream or a dollop of whipped cream. The creaminess will complement the rich caramel and moist banana cake beautifully. You could also serve it with a drizzle of extra caramel sauce for an indulgent touch.

To check if your Luscious Walnut Banana Caramel Cake is done baking, insert a toothpick into the center of the cake. If it comes out clean or with a few moist crumbs, the cake is ready. If the toothpick has wet batter on it, continue baking for a few more minutes and check again.