Make the Banana Cake: Preheat the oven to 350 degrees. Lightly coat a 6 loaf pan with nonstick vegetable spray. Line the bottom with a rectangle of baking parchment.
Into a large bowl, sift the flour, baking soda, baking powder, and salt together-three times.
In a mixing bowl, beat the butter and sugar together at high speed for 15 seconds, until combined. Add the eggs, one at a time, beating until each is incorporated. Continue beating until light and fluffy (about 6 more minutes).
In a medium bowl, mash the 3 bananas until soupy. Stir in the sour cream and vanilla.
With the mixer on low, beat in 1/3 of the flour mixture. Beat in half of the banana mixture, then another third of the flour. Beat in the remaining banana mixture and then the remaining flour.
Spread the batter in the prepared pan and bake for 40 minutes, or until the center springs back when lightly pressed and a cake tester comes out clean. Set the pan on a rack to cool.
Make the peanut butter buttercream: On medium speed, beat the butter and peanut butterin a mixing bowl until blended. Reduce the speed to low and gradually beat in the confectioners' sugar. Increase the speed to high and beat for 3 to 5 minutes (until light and fluffy).
Turn the cooled cake out of the pan. With a knife, trim off the end crusts and cut the cake into 1/2 slices. Peel the 4 bananas and cut into 1/4 thick rounds. Spread half the cake slices with the buttercream and layer the banana slices. Place remaining cake slices on top to form sandwiches. Cut the sandwiches in half and serve with ice cream and fudge sauce.

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Nutrition Facts

Per Serving Per 100 g

Amount Per 1 Serving
Calories	1645.68 Kcal (6890 kJ)
Calories from fat	897.83 Kcal
		% Daily Value*
Total Fat	99.76g	153%
Cholesterol	302.08mg	101%
Sodium	774.13mg	32%
Potassium	1539.91mg	33%
Total Carbs	168.43g	56%
Sugars	65.2g	261%
Dietary Fiber	12.16g	49%
Protein	31.13g	62%
Vitamin C	20.1mg	33%
Vitamin A	0.7mg	24%
Iron	8mg	45%
Calcium	144.4mg	14%

Amount Per 100 g
Calories	300.77 Kcal (1259 kJ)
Calories from fat	164.09 Kcal
		% Daily Value*
Total Fat	18.23g	153%
Cholesterol	55.21mg	101%
Sodium	141.49mg	32%
Potassium	281.44mg	33%
Total Carbs	30.78g	56%
Sugars	11.92g	261%
Dietary Fiber	2.22g	49%
Protein	5.69g	62%
Vitamin C	3.7mg	33%
Vitamin A	0.1mg	24%
Iron	1.5mg	45%
Calcium	26.4mg	14%

* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Find out how many calories should you eat.

Tastes

salty
savory
bitter
sweet

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