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1
Heat oven to 350 degrees. Grease and flour oblong pan, 9x13x2 inches.
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2
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.
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3
Stir in chocolate chips by hand.
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4
Pour batter into prepared pan.
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5
Bake until toothpick or cake tester inserted in center comes out clean, approximately 45 minutes.
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6
Cool cake completely and frost with Vanilla Butter Frosting.
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7
To make VANILLA BUTTER FROSTING:
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8
Blend powdered sugar into butter.
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9
Stir in vanilla and milk.
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10
Beat until frosting is smooth and of spreading consistency.
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11
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.
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12
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.
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13
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).