Pound loaf cake

Ingredients:
1 3/4 cup flour
2 teaspoon baking powder
1/2 teaspoon salt
1cup butter room temperature
1 cup sugar
4 eggs
1 teaspoon vanilla extract
One lemon zest or orange

Method:

Heat the oven to 350
Coat a loaf pan with butter and sprinkle flour in it put it on the side
Put the flour ,salt and baking powder in a bowl
Mix butter very well in a mixer and add sugar and keep mixing on low
Until you got a smooth mixture now add the eggs one by one and mix well
Now add the vanilla ,flour and lemon zest and mix well
Put all the mix inside the loaf pan .Put it in the over for 45 minutes or until you poke it
With a clean toothpick and come out clean if its come out with some dough leave it for more ten minutes
Enjoy.