Soft and moist banana cake

Ingredients

• Ingredients: ( for one 8" x 3.5" x 3" & one 9" x 4" x 3")
• 250g salted butter
• 1 1/2 cups castor sugar (I will reduce the sugar depending on what type of banana that I used and how ripe the bananas are)
• 4 eggs
• 1 tsp vanilla essence
• 4 tbsp milk
• 1 1/2 cups mashed banana (about 3 del monte bananas)
• 2 cups plain flour (sift together with 1 tsp bicarbonate of soda and 1 tsp baking powder)