totally banana

How to prepare banana cake.
Ripe Bananas. Use bananas that are deep brown or very spotted.The ripe the banana, the more flavor in the cake.
Gluten-Free Flour. I tested the recipe with Bob’s Red Mill’s 1:1 Gluten-Free Baking Flour. If you use a different blend, that doesn’t contain xanthan or guar gum, whisk a ½ teaspoon into the flour before using it.
Granulated and Brown Sugar. A combination of granulated and brown sugar.
Butter. Butter brings a nice richness and flavor to the cake. After melting the butter, cool it for a minute or two before adding it to the batter.
 Three eggs give this cake lift and flavor. Use room-temperature eggs for the best results. 
Milk. A little milk helps make the batter smooth. A dairy-free milk can be substituted for the milk. 
Vanilla Extract. Two teaspoons of vanilla extract adds a nice flavor.
Baking Powder. The baking powder helps the cake to rise and gives it a nice “cakey” texture.
Salt. Salt enhances the flavors of the other ingredients. Use table (fine) salt.