Pre-heat the oven to 150 degrees.
Peel and mash the maika (bananas) in a large bowl. Once they are mashed, the bananas should measure a rounded cup full.
Add both of the hēki (eggs) and the wanira (vanilla) to the maika kua penupenua (mashed bananas). Whisk it all together until smooth.
To the banana mix, add the huka hāura (brown sugar), noni ōriwa (olive oil), kirīmi kawa (sour cream or yogurt) and tote (salt). Whisk it again until smooth.
Into another large bowl, sift the puehu parāoa whakatipu (self-raising flour) and pēkana paura (baking soda).
Once sifted, pour all of the ranunga maika (banana mixture) into the dry ingredients. Using a spatula, gently fold it all together until everything is combined.
Divide the mixture into the cupcake cases, you should get 16 small ones or 12 medium sized ones. As an option, place one or two pieces of tiakarete karamea (caramel chocolate) in the centre of each cupcake. Bake for 25-30 minutes in a 150 degree oven until they spring back when pressed in the middle. You can eat them warm straight from the oven or follow my decoration process.