Method
Prepare the pan and flax binder
Heat the oven to 175°C (350°F). Line a 20 x 20 cm (8 x 8 in) baking pan (for 8 servings) with parchment, leaving enough overhang to lift the baked slab. For a scaled batch, choose a pan that keeps the batter at a similar depth rather than scaling the dimensions linearly. Stir 14 g of ground flaxseed with 75 ml of water in a small bowl and let it stand for 5 minutes, until lightly thickened.
05:00Mash the bananas and mix the wet ingredients
Peel and mash 360 g of ripe bananas in a large bowl until mostly smooth, leaving a few pea-size pieces for texture. Whisk in 96 g of natural peanut butter, 60 ml of pure maple syrup, 15 ml of canola oil, 5 ml of vanilla extract, and the thickened flax mixture until glossy and evenly blended.
Combine the grains and leavening
In a second bowl, whisk 160 g of rolled oats, 120 g of millet flour, 8 g of baking powder, 3 g of ground cinnamon, and 1.5 g of fine salt until the baking powder and cinnamon are evenly dispersed.
Finish and hydrate the batter
Add the dry mixture to the banana mixture and fold until no floury pockets remain. Fold in 35 g of pumpkin seeds, then let the batter stand for 5 minutes so the oats and millet flour begin to hydrate. It should be thick, scoopable, and moist rather than pourable.
05:00Press the batter into an even layer
Scrape the batter into the prepared pan and spread it into the corners. Press the surface firmly with a lightly damp spatula so the layer is level and the pumpkin seeds are embedded rather than sitting loose on top.
Bake until set and lightly golden
Bake on the center rack for 25 to 30 minutes. Start checking at 25 minutes: the top should look dry and lightly golden, the edges should pull slightly from the parchment, and a skewer inserted in the center should come out with moist crumbs but no wet batter. If the center still looks glossy, continue baking in 2-minute increments.
25:00Cool briefly, then cut
Set the pan on a heatproof surface and let the baked slab cool in the pan for 20 minutes. Lift it out with the parchment, cut it into equal bars with a sharp knife, and serve warm or at room temperature.
20:00
Smart Substitutions
- No peanut butter? Use almond butter or sunflower seed butter in the same amount; the flavor and firmness will shift slightly.
- No pumpkin seeds? Use chopped walnuts, sunflower seeds, or unsweetened shredded coconut for a different kind of crunch.
- No maple syrup? Use honey in the same volume. The bars will brown a little more quickly, so begin checking at the early end of the baking range.
- No ground flaxseed? Use the same amount of ground chia seed and keep the water quantity unchanged.
Tips and Variations
- Choose bananas with plenty of brown spotting; firm yellow bananas will give less sweetness and a drier crumb.
- Weigh millet flour when possible. It settles easily in a cup, and too much will make the bars sandy rather than tender.
- Press the batter all the way into the corners so the outside pieces bake at the same thickness as the center pieces.
What Went Wrong?
- Bars crumble when cut The batter may have been pressed too lightly or cut too soon. Compact it firmly before baking and complete the full cooling step.
- Center stays gummy The bananas may have been unusually large or the slab may be underbaked. Return it to the oven and check in short intervals until a skewer shows moist crumbs without wet batter.
- Texture feels dry or sandy Too much millet flour is the usual cause. Measure it by weight and use very ripe, soft bananas.
- Bars taste bitter Level the baking powder carefully and make sure the millet flour smells mild and fresh before mixing.
Nutrition Estimate
- Fiber: 5 g per serving
- Sodium: 190 mg per serving
Nutrition disclaimer:This recipe is provided for general cooking information only. Nutrition values are estimates and may vary by ingredients, brands, preparation methods, and serving sizes. Check ingredient labels and follow appropriate food-safety practices. This content is not medical, dietary, allergy, or professional food-safety advice.
