Elvis Cake (Banana Cake with Peanut Butter Frosting and Chocolate Ganache)
Amycakes Bakes | amycakesbakes.com
5 from 15 votes
This bakery recipe is made from extra moist banana cake, fudgy ganache filling and creamy peanut butter buttercream. An amazing flavor combination with a delicious moist texture.1x batch yields one 6" three-layer cake & a 2x batch yields one 8" three-layer cake (cut out with cake rings using the Cut and Stack Method).
Servings 8slices
Prep Time 30 minutesmins
Cook Time 26 minutesmins
Ingredients
Dry Ingredients
200 grams (1 ½cups)All-Purpose FlourI use Gold Medal
1 ½teaspoonsBaking Powder
1teaspoon(s)Baking Soda
¾teaspoon(s)Salt
1 Tablespoons + 1 ½ teaspoons Instant Clearjel or 3TablespoonsVanilla Instant Pudding MixA bakery ingredient you can use at home. Please make sure it is labeled as "INSTANT." See Note #1
200 grams (1cup(s))Sugar
Wet Ingredients
2.5 large to 3 smalloverly ripe bananas (the peel should be mostly dark brown/ black)I use bananas that I have frozen once they reach the perfect ripeness, see Note #2
¼cupWater &/or banana juice (if using frozen bananas)
Thaw the frozen overly ripe bananas in a bowl of hot water (If using fresh overly ripe bananas, see Note # 2). The bananas will be very soft to the touch once thawed. Remove the banana stems and delicately squeeze out the thawed bananas into a fine mesh strainer over a bowl, reserving the banana juice.
Mash the strained bananas until they are a fine puree without any chunks. I find a wire pastry blender works best for this when mashing them in a bowl, but you could also use a fork and mash them on a plate. Measure out 130 g (around ½ cup + 1.5 Tbsp) banana puree to use in the cake.
Make Banana Cake
Preheat oven to 325 degrees. Line a ¼ sheet pan with parchment paper, then spray the bottom (on top of the parchment) and sides of the pan with nonstick cooking spray.
Add enough water to the reserved banana juice to make ¼ cup. Combine water/banana juice, reserved 130 g banana puree, and the remaining Wet Ingredients (eggs, buttermilk, vegetable oil, and vanilla extract) in a large bowl and whisk until smooth and well-blended.
Using a sifter or fine-mesh strainer, sift the Dry Ingredients into a separate large bowl. Whisk until well blended.
Heat the Salted Butter in the microwave in a microwave-safe dish until just melted.
Pour the Wet Ingredients into the Dry Ingredients and whisk until incorporated. Pour the Melted Salted Butter over batter and whisk in until incorporated and the batter looks uniform and shiny.
Pour the banana cake batter into the prepared sheet pan and smooth out the batter until even (an offset icing spatula works well for this). The batter will be about ¼ inch from the top of a 1" tall sheet pan. (You can also bake in round pans or sheet-cake pans--see Note #3).
Bake in the middle or top rack (avoid bottom rack) of a preheated 325-degree oven for 16 minutes. Without opening the oven, turn the temperature down to 300 degrees and bake for another 6-10 minutes. Check the cake at this point. See if it is done by lightly touching the top of the cake--try to avoid moving the cake pan or baking rack, which could cause an underdone cake to sink. If jiggly at all to your touch, bake for another 1-5 minutes. The cake is done when a toothpick or small paring knife comes out clean when quickly stuck in the cake. A few moist crumbs on your knife are fine, but they shouldn't look wet.
The delicate cake will be easiest to layer from cold or frozen--allow the cake to cool, then wrap and freeze the cake in the pan for at least 2 hours (overnight preferred) or up to 2 weeks ahead of time (brush the cake with simple syrup if freezing for more than a couple of days--see Note # 3).
Layer, Decorate, and Serve
The easiest way to layer the cake is to layer the cake from frozen the day before you plan to serve it. If serving the cake the same day you are layering it, use refrigerated cake layers instead of frozen. Cut the cake layers with cake rings as described in How to Bake and Layer Cakes Like a Pro.
Fill your cake layers with a layer of prepared and cooled fudgy chocolate ganache filling and a layer of peanut butter buttercream (watch me layer it in the recipe video), then frost with more peanut butter buttercream. An offset icing spatula (I use the small and medium-size on all my cakes) helps with this. I recommend frosting a thin crumb coat of buttercream on the outside of the cake which will catch all the crumby edges, then allow it to set up in the freezer for about 10 minutes until the buttercream is firm. The remaining cake scraps can be used for cake truffles if desired. Heat the remaining ganache in the microwave until melted and drizzle down the sides of the cake, if desired.
Allow the completed cake to set up in the fridge, but remove it from the fridge 2-3 hours before serving so it can come back to room temperature. This cake has the best texture at room temperature. Enjoy!
Notes
Notes for 2x batches (some of these won’t apply if you are using the grams measurements): 3 tsp= 1 Tbsp 4 tablespoon = ¼ cup
Read my article Instant Clearjel: a Magical Little-Known Bakery Ingredient to see why I think this ingredient is worth having in your pantry. Instant Clearjel must always be whisked thoroughly with other dry ingredients before being added to wet ingredients to avoid clumping. (Make sure what you purchase is labeled as "Instant." Cooktype Clearjel is a different product that does not work the same in cakes). Instant pudding mix contains instant clearjel (modified cornstarch) as the second ingredient, which is why it works similarly.
I prefer to stock up on overly ripe bananas by freezing them once they turn a dark brown/black. Simply freeze the bananas in their peel in freezer bags, then thaw under hot water as described in step 1. If using overly ripe fresh bananas instead of frozen, it is unlikely that you will need to strain them or have any "banana juice." I recommend going by the listed number of bananas instead of the measured quantity, as the weight will differ with fresh bananas. With fresh bananas, you can use just water instead of banana juice/water.
Simple Syrup is optional, but I use it to seal in the moisture for cakes that will be refrigerated or frozen for more than a couple of days. While the cake cools, make a simple syrup by combining 2 teaspoons water and 2 teaspoons sugar in a small microwave-safe bowl. Microwave until the sugar is dissolved after whisking, about 20-30 seconds. Lightly brush the simple syrup on top of the cake with a silicone pastry brush (you won’t need to use all of it in a 1x batch baked in a ¼ sheet pan). You can also make a larger batch of this (1 part sugar to 1 part water) and keep it in the fridge if you’re doing a lot of cake baking.