Banana Bread Overnight Oats
By Emily Carter ·
Published
Quick answer
Mash 2 very ripe bananas, stir in 1 cup rolled oats, Greek yogurt, milk, chopped walnuts, maple syrup, cinnamon and vanilla, then chill at least 6 hours or overnight. Makes 2 servings with about 13 g of protein each from label values; estimates vary by brand.
Banana bread overnight oats are the batter bowl, upgraded to breakfast. Very ripe bananas get mashed with oats, Greek yogurt, walnuts and cinnamon, then chilled overnight until the whole jar tastes like banana bread batter. No oven, no waiting for a loaf to bake, just a spoon.
Why you’ll love it
- Tastes like banana bread batter in a jar.
- About 13 g of protein per serving from label values, all from real ingredients.
- 10 minutes of hands on work, then the fridge does the rest overnight.
- A true make ahead breakfast: it keeps for 4 days in jars.
- Uses up the overripe bananas sitting on your counter.
Ingredient notes
Very ripe bananas: the flavor engine. Brown spotted bananas are sweeter, mash smoother and taste like real banana bread. Two bananas is the right amount; one gets lost overnight.
Rolled oats: the body. One cup adds about 10 g of protein on standard labels and softens into a creamy base overnight. Old fashioned oats give the best texture here.
Greek yogurt: the protein and the tang. Half a cup adds about 12 g of protein on standard labels and keeps the oats creamy instead of gummy. Use 2% or whole.
Walnuts, cinnamon and vanilla: the banana bread trio. Walnuts add crunch, cinnamon adds warmth and vanilla ties the banana flavor together. The pinch of salt is what makes the whole jar taste like batter instead of just sweet oats.
The overnight chill rule that makes or breaks it
Two rules decide these oats. First, stir until no dry pockets remain. Dry oats never hydrate in the fridge, and they show up as hard bits in an otherwise creamy jar. Scrape the bottom of the bowl as you stir, since oats hide down there. Second, give the jars the full chill: at least 6 hours, and overnight is better. The oats soften fully and the cinnamon and banana meld in that time, which is what turns sweetened oats into banana bread flavor. Pull the jars after 3 hours and you get chewy oats in banana milk. Wait the night and you get the batter bowl.
Variations
- Chocolate chip banana bread: fold 2 tablespoons of mini chocolate chips into each jar before chilling.
- Peanut butter banana: swirl a spoonful of peanut butter through the oats before the chill, and top with chopped peanuts.
- Blueberry banana: fold a handful of fresh blueberries into the mixture for a fruity twist that still tastes like banana bread.
- Streusel top: mix a spoonful of brown sugar with chopped walnuts and a pinch of cinnamon, and sprinkle over each jar before serving.
What we learned testing it
- Two bananas beat one clearly. One banana tasted like plain oats with a hint of fruit, while two gave the full banana bread batter flavor.
- Cinnamon at 1 teaspoon was the sweet spot. Half a teaspoon got lost overnight, while 2 teaspoons tasted like a spice jar.
- Chopped walnuts held their crunch better than halves. The smaller pieces distributed through the oats and stayed crisp in the chill.
Read how we test recipes.
Banana Bread Overnight Oats
Makes 2 servings (about 1 cup each) · 6 hr 10 min total · Easy
Ingredients
Equipment
Fork · Mixing bowl · 2 glass jars with lids
Instructions
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Mash the bananas
Peel the bananas into a mixing bowl and mash with a fork until mostly smooth, leaving a few small lumps for texture. Very ripe bananas with brown spots mash easiest and taste sweetest, so skip the pretty yellow ones for this recipe.
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Stir in the oats and the rest
Add the oats, Greek yogurt, milk, walnuts, maple syrup, cinnamon, vanilla and salt to the mashed banana. Stir until everything is evenly combined and no dry oat pockets remain. The mixture will look loose now; it thickens overnight.
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Chill overnight
Divide the mixture between 2 jars and cover with lids. Chill for at least 6 hours, or overnight for the best banana bread flavor. The oats soften fully and the cinnamon and banana meld into that familiar batter taste.
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Top with walnuts and serve
Stir each jar once to loosen it, then top with banana slices, extra chopped walnuts and another pinch of cinnamon. Serve cold, straight from the fridge. If the oats set too firm, stir in a splash of milk.
Notes
- Use the ripest bananas you have. Brown spotted bananas are sweeter and mash smoother, and they are what give the real banana bread flavor.
- Stir well before jarring. Dry oat pockets never hydrate in the fridge, and they show up as hard bits in the morning.
- Taste before chilling. Ripe bananas vary in sweetness, so adjust the maple syrup to your fruit, not to the recipe.
- Toast the walnuts for 5 minutes in a dry skillet if you have time. Toasting deepens their flavor and keeps them crunchier overnight.
Nutrition per serving
Nutrition information is being calculated.
Substitutions
- Walnuts
- Use pecans or almonds instead. Pecans taste sweeter and richer, while almonds stay crunchier overnight.
- Maple syrup
- Use 2 tbsp brown sugar instead. It doubles down on the banana bread flavor, since brown sugar is what most banana bread recipes use.
- Greek yogurt
- Use 1/2 cup cottage cheese instead. Stir it in well; it melts into the oats overnight and adds protein with a mild tang.
Storage and make-ahead
Keep the jars covered in the fridge for up to 4 days. The oats keep thickening, so stir in a splash of milk to loosen before serving. Add banana slices just before serving so they do not brown in the jar.
Frequently asked questions
Do banana bread overnight oats really taste like banana bread?
They taste like the batter, not the baked loaf: sweet banana, cinnamon, vanilla and walnuts in a creamy base. If you love licking the banana bread bowl, this is that flavor as breakfast.
Can I make banana bread overnight oats without yogurt?
Yes. Swap the yogurt for an extra 1/2 cup of milk, or use mashed banana plus milk only. The oats will be a little thinner and less tangy, with less protein per serving.
How much protein is in these overnight oats?
These are label based estimates, not lab tested numbers, and they vary by brand. Each serving carries about 13 g of protein from the Greek yogurt, milk and oats. Check your yogurt and milk labels for your exact numbers.
Can I use frozen bananas?
Yes, thaw them first and drain off the extra liquid. Thawed bananas are very sweet and mash easily, but the extra liquid can thin the oats, so pour it off before mashing.
Why are my overnight oats still hard in the morning?
They needed more liquid or more time. Old fashioned oats need the full 6 hours minimum, and very thick yogurt can starve them of moisture. Stir in a splash of milk and give them 2 more hours.
