Banana Oatmeal Muffins Under 100 Calories – Light, Tasty, and Easy
These Banana Oatmeal Muffins are soft, lightly sweet, and surprisingly satisfying for something so simple. They’re perfect for busy mornings, snack breaks, or when you want something warm and homemade without the sugar crash. You’ll get a tender crumb, real banana flavor, and just enough oats to feel hearty.
Best of all, each muffin lands under 100 calories when made as directed, so you can enjoy one (or two) without second-guessing it.
Ingredients
Method
- Preheat and prep: Heat the oven to 350°F (175°C). Line a 12-cup muffin pan with paper liners or lightly coat with nonstick spray.
- Mash the bananas: In a large bowl, mash the ripe bananas until mostly smooth with a few small lumps.
- Whisk wet ingredients: Add the egg, milk, vanilla, maple syrup (if using), and applesauce. Whisk until well combined.
- Combine dry ingredients: In a separate bowl, stir together the rolled oats, oat flour, baking powder, baking soda, cinnamon, and salt.
- Mix the batter: Add the dry mixture to the wet mixture. Stir gently until just combined. The batter will be thick and spoonable, not runny. Fold in any optional add-ins.
- Portion evenly: Divide the batter among the 12 muffin cups. Aim for equal portions to keep calories consistent per muffin.
- Bake: Bake for 14–18 minutes, or until the tops are set and a toothpick inserted in the center comes out clean or with a few moist crumbs.
- Cool: Let the muffins rest in the pan for 5 minutes, then move them to a wire rack to cool completely. This helps them set and stay tender.
What Makes This Special
This recipe uses pantry staples and skips heavy oils and refined sugar. Ripe bananas do the heavy lifting for sweetness, while oats add texture and fiber. There’s no complicated technique, no mixer required, and the batter comes together in minutes. Each muffin is under 100 calories when baked in a standard 12-cup tin and portioned evenly.
It’s also flexible.
You can use quick oats or old-fashioned, a little milk of your choice, and a touch of maple syrup if your bananas aren’t super ripe. The result is a light, cozy muffin that tastes fresh and clean, not diet-y.
Ingredients
- 2 large very ripe bananas (about 1 cup mashed)
- 1 large egg
- 1/2 cup unsweetened milk (dairy or almond/oat milk)
- 1 teaspoon vanilla extract
- 2 tablespoons maple syrup or honey (optional if bananas are very sweet)
- 1 1/2 cups rolled oats (old-fashioned or quick oats)
- 1/2 cup oat flour (or finely blended oats)
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon fine sea salt
- 2 tablespoons unsweetened applesauce (adds moisture with few calories)
- Optional add-ins (use sparingly to stay under 100 calories): 2 tablespoons mini chocolate chips or chopped nuts, or 1/4 cup blueberries
Step-by-Step Instructions
- Preheat and prep: Heat the oven to 350°F (175°C). Line a 12-cup muffin pan with paper liners or lightly coat with nonstick spray.
- Mash the bananas: In a large bowl, mash the ripe bananas until mostly smooth with a few small lumps.
- Whisk wet ingredients: Add the egg, milk, vanilla, maple syrup (if using), and applesauce.
Whisk until well combined.
- Combine dry ingredients: In a separate bowl, stir together the rolled oats, oat flour, baking powder, baking soda, cinnamon, and salt.
- Mix the batter: Add the dry mixture to the wet mixture. Stir gently until just combined. The batter will be thick and spoonable, not runny.
Fold in any optional add-ins.
- Portion evenly: Divide the batter among the 12 muffin cups. Aim for equal portions to keep calories consistent per muffin.
- Bake: Bake for 14–18 minutes, or until the tops are set and a toothpick inserted in the center comes out clean or with a few moist crumbs.
- Cool: Let the muffins rest in the pan for 5 minutes, then move them to a wire rack to cool completely. This helps them set and stay tender.
How to Store
- Room temperature: Keep in an airtight container for up to 2 days.
Add a paper towel underneath to absorb moisture.
- Refrigerator: Store for up to 5 days. Reheat for 10–15 seconds in the microwave to soften.
- Freezer: Freeze in a zip-top bag for up to 2 months. Thaw at room temp or microwave for 20–30 seconds.
Why This is Good for You
- Whole grains: Oats bring fiber and beta-glucan, which can support heart health and steady energy.
- Naturally sweetened: Ripe bananas offer sweetness with potassium and vitamin B6, reducing the need for added sugar.
- Light but satisfying: Under 100 calories per muffin helps with portion control while still curbing snack cravings.
- No heavy oils: Applesauce and banana provide moisture, keeping fat and calories in check.
Pitfalls to Watch Out For
- Under-ripe bananas: Green or just-yellow bananas won’t be sweet enough.
Choose bananas with brown spots for best flavor and texture.
- Overmixing: Stir until just combined. Overmixing can make the muffins dense and tough.
- Uneven portions: If some cups are fuller than others, the calorie count per muffin will vary. Use a scoop for consistency.
- Too many add-ins: Extras like chocolate chips and nuts add up quickly.
Measure carefully to stay under 100 calories.
- Overbaking: Dry muffins are often overbaked by a few minutes. Start checking at 14 minutes.
Alternatives
- Gluten-free: Use certified gluten-free oats and oat flour.
- Dairy-free: Swap in almond, oat, or soy milk. The recipe is already oil-light.
- No added sweetener: Skip the maple syrup/honey if your bananas are very ripe.
Add 1–2 extra tablespoons of milk if the batter feels too thick.
- Spice it up: Add a pinch of nutmeg or cardamom for warmth without extra calories.
- Berry boost: Fold in 1/4 cup blueberries or diced strawberries for brightness while keeping calories modest.
- Protein twist: Replace 2 tablespoons of oat flour with 2 tablespoons of unflavored or vanilla whey protein. Add a splash more milk if batter thickens.
FAQ
Are these muffins really under 100 calories?
Yes, when portioned into 12 equal muffins using the listed ingredients and only light or no add-ins, they come in under 100 calories each. Heavier add-ins or oversized portions will increase the count.
Can I use only oats and skip the oat flour?
You can blend rolled oats in a blender to make your own oat flour, then measure as directed.
Using only whole oats can make the texture looser, so a mix of oats and oat flour gives a better crumb.
Can I make these without eggs?
Yes. Replace the egg with a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water, rested 5 minutes). The texture will be slightly denser but still tasty.
What if I only have old-fashioned oats?
Old-fashioned oats work well.
If you prefer a more uniform texture, pulse them a few times in a food processor before mixing, or blend a portion into oat flour.
How do I make them sweeter without adding many calories?
Use extra ripe bananas and a bit more cinnamon or vanilla. A few stevia drops can help if you’re comfortable with zero-calorie sweeteners.
Can I bake them as mini muffins?
Absolutely. Bake mini muffins for 9–12 minutes, checking early.
This makes them even easier to portion and pack.
Why are my muffins gummy?
Gumminess usually comes from too much moisture or underbaking. Measure liquids carefully, don’t overmix, and bake until a toothpick comes out mostly clean.
Do I need to soak the oats first?
No soaking is required. The batter’s moisture hydrates the oats during baking.
If you prefer a softer texture, rest the mixed batter for 5–10 minutes before scooping.
Can I add peanut butter?
You can swirl in 1–2 tablespoons of powdered peanut butter to keep calories low. Traditional peanut butter tastes great but adds more calories quickly, so use sparingly.
How can I boost the rise?
Make sure your baking powder and soda are fresh, don’t overmix, and bake right after scooping. A hot oven and quick transfer help lift.
In Conclusion
These Banana Oatmeal Muffins keep things simple: wholesome ingredients, quick prep, and a naturally sweet flavor that fits your day without weighing it down.
They’re reliable, freezer-friendly, and easy to tweak to your taste. Keep a batch on hand, and you’ll always have a light, satisfying bite ready when you need it.
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