Banana Cake - serves 10

1/4 cup of sour cream
1 tsp of baking soda
1/4 cup of butter, softened
1 1/2 cups of sugar
2 eggs
1 large banana, mashed
1 tsp of vanilla extract
1 1/2 cups of flour

Frosting:
2 tbsp of butter, softened
1 cup of confectioners' sugar
1 tbsp of milk
1 tbsp of lemon juice

Preheat your oven to 350º. Grease a 9 inch loaf pan and dust the pan with flour. 
Combine the sour cream and baking soda in a large bowl, let it stand for 5 minutes.
Mix the butter, sugar, and eggs together in a separate bowl, stir into the sour cream mixture. Add the mashed banana, and mix well. Gradually add vanilla and flour, mix well after each addition. pour the batter into prepared loaf pan and bake for 1 hour. Cool in pan on wire rack for 10 minutes, then turn out onto rack, cool completely before frosting.
To make the frosting, cream the butter and sugar together well in mixing bowl. Stir in the milk and lemon juice, beating well until frosting is of spreading consistency. Frost the sides and top of cooled cake.