Banana Oatmeal Cookies with Cranberries
These vegan banana oatmeal cookies come together with just a handful of ingredients and no added sweetener. Very ripe bananas and dry cranberries do all the sweetening, while quick-cooking oats give the cookies their soft, chewy body. Mash, mix, spoon onto a tray, and bake at 350F for 20 to 30 minutes.
Oatmeal cookies are everywhere on Pinterest, and I have seen so many different recipes, some healthy, some not so much. After scrolling past dozens of versions loaded with butter and sugar, I finally decided to make my own version: something I could feel good about eating with my afternoon tea and still hand to a child without a second thought.
What I love about this one is how little it asks of you. There is no creaming butter, no chilling dough, no special equipment. You mash a few bananas, stir everything in one bowl, and the only thing you really have to get right is the ripeness of the fruit. That single decision is what makes these cookies sweet enough to skip the sugar entirely.
This Recipe Works If You Need
- A refined sugar-free treat that still tastes like a real cookie, not a compromise.
- A quick way to use up bananas that have gone past the point of eating plain.
- A naturally gluten-free option (use certified gluten-free oats) for mixed dietary tables.
- A snack you can pack for kids, lunchboxes, or a hike without worrying about a sugar crash.
- A one-bowl bake for when you want something warm in under 40 minutes and minimal cleanup.
Why You’ll Love This Recipe
- No added sweetener. Ripe bananas and dry cranberries carry all the sweetness, so there is no sugar, syrup, or honey anywhere in the bowl.
- Seven simple ingredients. Everything is likely already in your pantry, and most of it is one fruit and one grain.
- One bowl, one fork. You mash and stir in the same bowl, which means almost nothing to wash afterward.
- Naturally vegan and gluten-free. No eggs, no butter, no flour, just oats holding everything together.
- Soft and chewy texture. The oats soak up the banana and oat milk as they bake, giving you a tender, moist crumb rather than a dry biscuit.
- Forgiving for beginners. There is no creaming, no rising agent to fuss over, and no dough to chill, so it is hard to get wrong.
Ingredient Notes
Bananas are the heart of this recipe, and ripeness is not optional here. You want them very ripe, the kind covered in brown freckles and soft to the touch, because that is when the starches have broken down into sugars. A pale yellow banana will leave the cookies bland and starchy. If yours are not there yet, leave them on the counter another day or two, or speed things up by baking unpeeled bananas at 300F for about 15 minutes until the skins blacken.
Quick-cooking oats are what I reach for here, not old-fashioned rolled oats. The smaller, thinner flakes absorb the banana and oat milk faster and bind into a more cohesive cookie, so you avoid that loose, falling-apart texture. If you only have rolled oats, pulse them a few times in a food processor to break them down. For a gluten-free batch, buy oats labeled certified gluten-free, since standard oats are often cross-contaminated with wheat.
Dry cranberries add little bursts of tartness and a second layer of natural sweetness. Look for ones that are still slightly soft and pliable rather than hard and dried out, and if you can find them, choose cranberries sweetened with apple or fruit juice rather than refined sugar to keep this treat truly sugar-free.
Oat milk brings just enough moisture to bring the dough together without thinning it out. A quarter cup is all you need. Any unsweetened plant milk works in its place, but oat milk has a mild, naturally sweet flavor that suits these cookies and keeps them dairy-free.
Vanilla extract rounds out the flavor and makes the banana taste warmer and more dessert-like. Use real extract rather than imitation if you have it, since the difference is noticeable in a recipe this simple where there is nowhere for a flat note to hide.
Baking soda gives a touch of lift so the cookies are not dense, and it also encourages a little browning at the edges. Half a teaspoon is plenty for this batch. Make sure yours is fresh, because baking soda that has been sitting open for a year loses its punch.
Tips
- Mash the bananas thoroughly. Use a fork and keep going until you have a smooth puree with no big lumps. Lumps of banana stay wet and gummy in the finished cookie, while a smooth mash spreads the sweetness evenly through every bite.
- Let the mixture rest a few minutes before baking. Giving the oats five minutes to drink up the banana and oat milk thickens the dough and makes it far easier to spoon into neat mounds that hold their shape.
- These cookies do not spread, so shape them before baking. Unlike butter-based dough, this mixture stays put in the oven. Press each spoonful into the rounded, flatter shape you want the finished cookie to have.
- Watch for the edges to firm up and turn golden. You know they are ready when the bottoms are set and lightly browned and the tops no longer look wet. The 20 to 30 minute range depends on cookie size, so start checking at 20.
- Let them cool on the tray. Straight out of the oven these cookies are soft and fragile. They firm up as they cool, so resist moving them for at least 10 minutes or they may break.
Substitutions and Variations
- Swap the dried fruit. Raisins, chopped dates, or dried sour cherries all work in place of cranberries. Dates will push the cookies sweeter, while sour cherries keep that tart contrast.
- Add a warm spice. A half teaspoon of cinnamon or a pinch of nutmeg leans these toward a cozy, wintry flavor that pairs well with the banana.
- Fold in a crunch. Chopped walnuts, pecans, or pumpkin seeds add texture and a little richness. Stir in a small handful with the oats.
- Use a different plant milk. Almond, soy, or rice milk all stand in for oat milk one to one. Keep it unsweetened so the cookies stay free of added sugar.
Storage and Make Ahead
Because these cookies are moist from the banana, they keep best in the fridge. Store them in an airtight container for up to four or five days, and let them come to room temperature or warm them briefly before serving to bring back the soft texture. They also freeze well: lay the cooled cookies flat on a tray to freeze, then transfer to a bag, and they will keep for up to two months. The dough itself does not keep well raw, since the oats keep absorbing moisture, so it is best to bake the whole batch at once.
If you like simple, naturally sweetened bakes like this, you might also enjoy my vegan oatmeal cookies and these vegan whole grain cookies. For more treats made without refined sugar, browse my collection of vegan sugar-free desserts.
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Banana Oatmeal Cookies with Cranberries
Ingredients
- 3 bananas very ripe
- 2 cups quick-cooking oats
- ½ cup dry cranberries
- 1 teaspoon vanilla extract
- ¼ cup oat milk
- ½ teaspoon baking soda
- oil for greasing the pan
Instructions
- Preheat oven to 350F.
- In a bowl, mash bananas with a fork, then add oats, cranberries, baking soda, milk
- and vanilla.
- Cover an oven tray with some parchment paper then lightly grease it.
- Spoon about 1 tablespoon of cookie mixture for each cookie, or 2 if you want
- them larger.
- Bake them for 20-30 minutes.
Frequently Asked Questions
Mushy cookies usually mean the dough had too much moisture or the cookies were underbaked. Make sure your bananas are mashed smooth without wet lumps, let the oats rest a few minutes to absorb liquid before baking, and bake until the bottoms are set and golden. Cooling them fully on the tray also lets them firm up.
No. These cookies use no flour at all. The quick-cooking oats absorb the banana and oat milk and bind everything together, which is what gives the cookies their structure and chewy texture. That also makes them naturally gluten-free when you use certified gluten-free oats.
Yes, this recipe has no added sugar at all. Very ripe bananas and dry cranberries provide all the sweetness. The riper the bananas, the sweeter the cookies, so use ones that are heavily freckled and soft for the best natural sweetness.
Quick-cooking oats work best in this recipe because their smaller flakes absorb moisture faster and bind into a cohesive cookie. Old-fashioned rolled oats can be used if you pulse them a few times in a food processor first, otherwise the cookies may turn out loose and crumbly.
Stored in an airtight container in the fridge, they keep for about four to five days. Because they are moist from the banana, the fridge keeps them fresh longer than the counter. You can also freeze them for up to two months and thaw as needed.
This dough is meant to hold its shape because it has no butter to melt and spread. That is normal and expected. Shape each cookie into the flatter, rounded form you want before baking, since they will come out of the oven looking much the same as they went in.
Made these for my nephew who is a vegan. He loved them! Thank you for the recipe!
You’re welcome!