If you keep a sourdough starter, you’ve probably stared at a jar of discard and wondered what else you could make with it besides pancakes or crackers. These easy sourdough discard granola bars are one of my favorite ways to put extra starter to work simple, chewy, naturally sweet, and perfect for snacks or breakfasts on the go.
I’ve made homemade granola bars for years, but they were always a little crumbly. Adding sourdough discard completely changed that. It acts as a natural binder, helping the bars hold together while adding a subtle depth of flavor you won’t find in store-bought versions.
These bars are practical, flexible, and a smart way to reduce food waste while making something genuinely delicious.
Ingredients
Dry Ingredients
- Rolled oats
- Sunflower seeds
- Pumpkin seeds
- Sliced almonds, pecans, or walnuts
- Chopped pitted dates
- Chex cereal (optional, for crunch)
- Salt
- Cinnamon
Why dates?
Dates are soft, naturally sweet, and help create that perfect chewy texture. They’re essential to keeping these bars from becoming dry or crumbly.
Wet Ingredients
- Sourdough discard
- Maple syrup or honey
- Olive oil (or melted coconut or avocado oil)
- Peanut butter (or any nut/seed butter)
- Vanilla extract
These ingredients work together to bind, sweeten, and flavor the bars.
Optional Add Ins
- Dark chocolate chips
- Dried cranberries or raisins
- Shredded coconut
- Chopped nuts
- Seeds like chia or flax
How to Make Sourdough Discard Granola Bars
1. Preheat & Prepare
Preheat your oven to 350°F (175°C).
Line a 9×13-inch baking pan (or jelly-roll pan) with parchment paper, leaving overhang for easy removal.
2. Mix Dry Ingredients
In a large bowl, combine:
- Oats
- Dates
- Nuts and seeds
- Salt and cinnamon
- Any dry add-ins
Stir well so everything is evenly distributed.
3. Mix Wet Ingredients
In a separate bowl, whisk together:
- Sourdough discard
- Maple syrup or honey
- Oil
- Peanut butter
- Vanilla
Break up the discard completely so it blends smoothly.
4. Combine
Pour the wet mixture over the dry ingredients.
Stir with a wooden spoon until everything is evenly coated and sticking together.
The mixture should feel moist and slightly sticky, not dry.
5. Press Into Pan
Transfer the mixture to your prepared pan.
Press it firmly and evenly using a spatula or clean hands. This step is crucial for bars that hold together.
6. Bake
Bake for 25–30 minutes, until the edges are lightly golden and the center is set.
7. Cool & Cut
Let the bars cool completely in the pan.
Lift out using parchment, then cut with a sharp knife.
For cleaner cuts, wipe the knife between slices.
Flavor Variations
- Chocolate Lover’s: Add chocolate chips and a tablespoon of cocoa powder
- Tropical: Dried mango, coconut flakes, macadamia nuts
- Autumn Spice: Pumpkin purée (swap for nut butter), cinnamon, nutmeg
- Berry Mix: Dried cranberries, blueberries, or goji berries
Storage & Freezing
Storage Options
- Room temperature: 1–2 weeks (airtight container)
- Refrigerator: 2–3 weeks
- Freezer: Up to 3 months
I prefer freezing them individually and pulling one out as needed—perfect for lunches and travel snacks.
Serving Ideas
- Crumbled over yogurt
- Paired with fruit for breakfast
- Dipped in melted dark chocolate
- Used as a topping for smoothie bowls or ice cream
Warming them slightly before eating brings out the flavors even more.
Common Issues
Bars Are Too Crumbly
- Not enough wet ingredients
- Try adding more honey, nut butter, or a tablespoon of chia seeds
Bars Are Too Hard
- Overbaked or too dry
- Reduce bake time by a few minutes
- Add more moisture next time
Uneven Baking
- Rotate the pan halfway through baking
- Press mixture evenly before baking
FAQs
Can I use unfed sourdough discard?
Yes. Discard does not need to be active for this recipe.
Do these taste sour?
No. The flavor is mild and slightly tangy, not sour.
Can I make these gluten-free?
Yes, if your discard and oats are gluten-free.
Can I reduce the sweetener?
You can slightly, but too little may affect binding.
