preheat the oven to 350

soften the butter

cream the two sticks of butter,lard, brown sugar ,and sugar together for at least 3 minutes until butter,lard,brown sugar,and sugar is smoothed

then add the 5 eggs one at a time

after adding each egg one at a time add the two teaspoons of vanilla extract and the teaspoon of baking powder

then add the 3 cups of self rising flour one cup at a time also scrape the sides of the bowl to get the excess flour off the sides

finally adding the cup of milk pouring a little bit at a time and still mixing until the batter is smoothed

smash the three bananas in to the batter mix slowly

spray and Flour a bunt pan or a pound cake pan. pour the batter in the pan making sure there is equal amount on both sides. place the pan in oven for 45 mins to 1 hour and 25 mins depending on your stove