chocolate chunk steam oven banana bread

Steam Oven Chocolate Chunk Banana Bread

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If you’re a banana bread fan, today will be a treat. This steam oven chocolate chunk banana bread is hands down the best version I’ve made, which is saying something because I’ve been devoted to my healthier combi steam banana bread recipe for a few years now.

There’s a problem with my other favorite banana bread, though, and it’s this. My kids, who were pretty indiscriminate about their baked goods for a long time, have matured somewhat and decided that cakes with more sugar, more butter and really great chocolate taste better than their healthier, refined-sugar-free counterparts.

choc chunk banana bread with cheeky hand

I’m sad about this state of affairs, but then I also think, who can blame them? Butter is better, and when I worry about them eating too much sugar, I can still take heart from the fact that they see mass produced, full of junk (and more sugar than even my sweetest baking) supermarket cakes for what they are and won’t touch them.

Back to the chocolate chunk banana bread, though: the difference between this and my other banana bread recipe on this site is kind of like comparing a creamy ripened camembert cheese with a crumbly, aged cheddar. They both have their excellent points but one isn’t actually better than the other. It just depends on what you’re looking for.

When you want a deep, sticky and damp banana bread that’s more akin to dessert than breakfast, this is the recipe to choose. Cooking it using combi steam enhances the texture, although even in a regular oven it would be a better loaf than most.

Love easy baking in your steam oven? Try these:
Simple Steam Oven Chocolate Cake
Raspberry and Dark Chocolate Loaf Cake
Lemon Ricotta Cake
Low Carb Pumpkin Bread

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How to make a great loaf of banana bread

ingredients for choc banana bread

Happily, banana bread is easy to make. Mash a couple of bananas, stir in other wet ingredients, fold through a little flour and leavening and you’re done! The best tip I can offer is to treat the mix like a muffin batter, meaning don’t overmix once the flour is added or you’ll end up with a tough, rubbery cake instead of something soft and tender.

Add-ins like today’s chocolate chunks or perhaps a handful of blueberries will go a long way, but if your basic recipe is sound then you’d easily get away with no additions at all.

step by step making banana bread

This recipe is forgiving of changes and substitutions, so I encourage you to make it your own:

  1. The quantity of banana you add is subjective, so if you’ve got a little less or a little more just throw it in (though if you’ve got much less than a cup I’d recommend adding an extra egg for binding).
  2. When it comes to fat, melted butter is my preference here for flavor and a more cakey crumb, but swapping it for a neutral-flavored oil will give a finished loaf that’s more tightly and evenly textured, with excellent keeping qualities.
  3. If you don’t have brown or dark brown sugar, just switch it for regular granulated sugar. Your loaf won’t be as dark as the pictured one but it’ll work just fine.
sliced loaf of chocolate chunk banana bread

Using a steam oven to cook your banana bread

Banana bread is, in general, a fairly moist kind of thing, so baking it in a regular oven is perfectly fine. If you have the option of a steam oven, though, you’re about to make the best banana bread you’ve ever tried.

What’s different about baking it in a steam oven? Essentially, you’re going to end up with a loaf that’s softer and even more tender than normal. It’ll cook 10-15 minutes faster than in your regular oven and be more evenly done, with a glossy, burnished top.     

If you’ve been feeling daunted about baking in your steam oven and need something easy to get you started, or you just have a few overripe bananas languishing in the fruit bowl, mix up a loaf of this chocolate chunk banana bread. It’ll only take a few minutes to get into the oven, and you’ll be so glad you made the effort.

Happy cooking, see you here again soon.

slices of steam oven banana bread
chocolate chunk steam oven banana bread
Print Recipe
4.58 from 7 votes

Steam Oven Chocolate Chunk Banana Bread

This is the banana bread to make for a no-holds-barred, sticky and satisfying cake style loaf,with generous chunks of chocolate. It keeps well for several days or can be frozen.
Prep Time10 minutes
Cook Time55 minutes
Total Time1 hour 5 minutes
Course: Afternoon Tea, Breakfast, Dessert, Morning Tea
Cuisine: American, Western
Keyword: banana bread, chocolate banana bread, chocolate chunk banana bread, steam oven banana bread
Servings: 10 slices
Calories: 356kcal
Pin Recipe


Wet mix

  • 3 bananas very ripe, medium/large sized, to give around 1½ cups mashed banana
  • ½ cup butter 1 stick, melted
  • ¾ cup brown sugar I use dark but light will work
  • 1 egg large
  • 1 tsp vanilla extract

Dry mix

  • 1 tsp baking soda bicarbonate soda
  • ¼ tsp salt fine or table salt
  • 1 ½ cups all purpose flour plain flour
  • 1 cup dark chocolate 6oz, semisweet or bittersweet, your preference, chopped into rough chunks; keep some pieces quite chunky so there’s variation in the puddles of chocolate you get in the finished loaf


  • Preheat oven to 350°F/180°C, combination steam setting. If your oven has variable humidity levels, use 30%. If not, don’t worry! Just set to combi steam at the correct temperature and the oven will figure out the humidity for you. Grease and line a 9×5” (23x12cm) loaf pan with parchment paper or a loaf pan liner.
  • Use a potato masher or fork to mash the bananas in a large bowl. Add the rest of the wet mix ingredients and stir well to combine.
  • Put all the dry mix ingredients except the chocolate into the bowl, then stir with a large spoon until it’s almost mixed. Add the chocolate and stir in to just combine.
  • Scrape the batter into your lined pan and bake until it’s risen, golden and tests clean with a skewer, about 55 minutes (if you’d like to bake to temperature doneness, the inside of the loaf should read 208-210°F/98-99°C on a probe thermometer). Allow to cool in the pan for 10 minutes before turning onto a rack to cool completely.
  • Serve the banana bread in thick slices. I love it unadorned on the first day or two, after that I warm it slightly and spread with butter to serve.


  1. Makes 1 x 9×5” loaf, approximately 8 slices.
  2. This is the banana bread to make when you want a no-holds-barred, sticky and deeply satisfying cake style loaf, with generous chunks of dark chocolate. It keeps for several days at room temperature and freezes well.
  3. The puddles of chocolate in this loaf can make it difficult to test for doneness. If you have a probe thermometer it’s easy enough to check using temperature instead of relying on guesswork or a skewer, though. When it’s done, the center of the loaf should read 208-210°F/98-99°C.


Calories: 356kcal | Carbohydrates: 47g | Protein: 4g | Fat: 17g | Saturated Fat: 10g | Trans Fat: 1g | Cholesterol: 41mg | Sodium: 264mg | Potassium: 303mg | Fiber: 3g | Sugar: 25g | Vitamin A: 337IU | Vitamin C: 3mg | Calcium: 36mg | Iron: 3mg

Over to you – if you try this recipe I’d love to know about it! Share your comments below or on Facebook, tag @steamandbake on Instagram, or pin all your favourite Steam and Bake recipes over on Pinterest!

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