The Best Gluten Free Banana Cake-So Light and Moist

I have just made a gluten free banana cakeIt is superb, I’m so impressed It’s light and moist. Yummo My experience with Gluten Free, is not always great but this recipe...Wow Perfect for lunch. Soup of course as it is a ghastly day here in Auckland One of my Granddaughters is not good with wheat.  We usually bake with Spelt flour. I'd run out and its not easy to find so, instead, I bought Edmonds Gluten Free Self Raising Flour  On the packet there is a recipe for Banana cake In the fruit bowl , there were some well ripened bananas So I thought I'd whip one up What a find, I will definitely make this again Its a one pot wonder as well Delightful  125g butter cubed3/4 Cup brown sugar firmly packed 1 tsp vanilla1 Cup mashed bananas (2 large ripe bananas)1 egg , lightly beaten 2 1/2 tablespoons milk1 1/2 Edmonds Gluten Free self raising flour   Pre-heat oven to 170C conventional...150C fanGrease and line a 20cm square tinPut butter, sugar and vanilla into a medium saucepanStir over moderate heat till meltedRemove from heat Stir bananas into mixAdd egg, flour and milkPour mixture into prepared cake tin, smooth surfaceBake for 30 minutes or until skewer inserted comes out cleanCool in tin for 10 minutesI iced it with an orange butter icing 1 Cup icing sugar2 Large tablespoons butterZest of a medium orange and juice of half of itMix the butter and Icing sugar then  add juice till you get a spreading consistency Ice your cake, you wont be disappointed