In a mixing bowl, mix together mashed bananas, plain yogurt whisk them until combine together. Then mix in eggs, lemon zest and vanilla until smooth.

Then add the dry ingredients. Sifted flour, sugar, baking powder, baking soda and salt. Mix until combine well

Then add melted butter inside. mixing for about 2 minutes until dry ingredients are fully incorporated.

Scrape down the sides and pour batter into the pan and spread evenly.

When the cake is done let it cool on the rack for 5 to 10 mins.