Banana-Chocolate Chip Cake - cooking recipe

Ingredients

2 1/3 cups all-purpose flour
1 1/3 cups sugar
1 1/4 cups bananas, fully ripe, mashed (about 3 medium)
2/3 cup butter
2/3 cup buttermilk (I use soured milk)
3 eggs
1 1/4 teaspoons baking powder
1 1/4 teaspoons baking soda
1 teaspoon salt
1 cup semi-sweet chocolate chips
VANILLA BUTTER FROSTING
3 cups powdered sugar
1/3 cup butter, Softened
1 1/2 teaspoons pure vanilla extract
2 -3 tablespoons milk or 2 -3 tablespoons half-and-half

Preparation

Heat oven to 350 degrees. Grease and flour oblong pan, 9x13x2 inches.
Beat all ingredients, except chocolate chips, in large mixer bowl on low speed, scraping bowl constantly, 30 seconds. Beat on high speed, scraping bowl occasionally, 3 minutes.
Stir in chocolate chips by hand.
Pour batter into prepared pan.
Bake until toothpick or cake tester inserted in center comes out clean, approximately 45 minutes.
Cool cake completely and frost with Vanilla Butter Frosting.
To make VANILLA BUTTER FROSTING:
Blend powdered sugar into butter.
Stir in vanilla and milk.
Beat until frosting is smooth and of spreading consistency.
Hint #1. For best results, be sure the bananas you use for cakes are fully ripened. If you use firm bananas, the cake will not have the fragrance or the flavor.
Hint #2. To sour milk: Add 1 tablespoon white vinegar or lemon juice to 1 cup of milk. For this recipe, use 2 teaspoons vinegar or lemon juice for 2/3 cup milk.
Hint #3. When it comes to homemade frosting, I usually increase the recipe by one-half; so in this case, I used 4 A1/2 cups powdered sugar, 7 A1/2 tablespoons butter, and 2 A1/4 teaspoons vanilla (using the same measuring spoons, 1 A1/2 teaspoons first, and then A1/2 and A1/4 teaspoons vanilla).