This is the ultimate “Sunday Dinner” dessert. It takes the dense, buttery crumb of a classic pound cake and infuses it with the nostalgic, creamy flavors of a Southern banana pudding.
The secret to keeping it a Pound Cake (and not just “banana bread”) is maintaining the high fat-to-flour ratio while using instant pudding mix to get that specific “boxed” vanilla flavor we all grew up with.
The Ingredients
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3 cups All-purpose flour (sifted)
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1 box (3.4 oz) Instant Vanilla or Banana Pudding mix
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1 tsp Baking powder + ½ tsp Salt
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1 ½ cups (3 sticks) Unsalted butter, softened
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2 ½ cups Granulated sugar
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6 Large eggs (room temperature)
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3 Very ripe bananas, mashed (about 1 cup)
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1 tsp Vanilla extract + ½ tsp Banana extract (optional for extra “oomph”)
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1 cup Nilla Wafers, crushed (save some for the top!)
The Method
1. Prep the Base Preheat your oven to 325°F (160°C). Grease and flour a 10-inch Bundt pan very well. In a medium bowl, whisk together the flour, dry pudding mix, baking powder, and salt.
2. Cream the Butter & Sugar In a large bowl, cream the butter and sugar for at least 5 minutes until it’s pale and fluffy. This step is what gives the cake its “lift” since we aren’t using much leavening.
3. Add the Eggs & Bananas Add eggs one at a time, beating well after each. Stir in the mashed bananas and vanilla extract.
4. The Fold Gradually add the dry ingredients to the wet, mixing until just combined. Do not overmix or the cake will be tough! Finally, gently fold in the crushed Nilla Wafers.
5. The Slow Bake Pour the batter into the pan and bake for 70–85 minutes.
The Test: A skewer inserted into the center should come out clean or with just a few moist crumbs.
The “Southern Secret” Glaze
While the cake cools in the pan for 15 minutes, make this:
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1 cup Powdered sugar
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2 tbsp Heavy cream or milk
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¼ tsp Banana extract
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Whisk until smooth and pour over the warm cake after you flip it out of the pan. Immediately press more crushed Nilla Wafers into the glaze.
Three Rules for a Perfect Pound Cake
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Room Temp Everything: If your eggs or butter are cold, the batter will “break” (look curdled), and the texture won’t be velvety.
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The Banana Ripeness: Use bananas that are covered in black spots. They have the highest sugar content and the strongest aroma.
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Don’t Rush the Cool: Let it sit for at least 2 hours before slicing. Pound cakes need time for the structure to “set”—if you cut it hot, it will seem gummy.
Why the Pudding Mix?
I know some purists prefer scratch-only, but the Instant Pudding Mix contains cornstarch and extra flavorings that do two things:
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It creates a “tender” crumb by interfering with gluten development.
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It keeps the cake moist for days—which is great, because this cake actually tastes better on day two.
Pro-Tip: Serve this with a dollop of homemade whipped cream and fresh banana slices on the side.