Sourdough Granola Bars

imple sourdough granola bars are gluten-free and healthy

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

5 from 3 reviews

Sourdough starter means that this healthy snack doesn’t require sweetener or additional flour as a binder. Sourdough granola bars are perfect for all sorts of flavor options. See the section above for 5 delicious options: blueberry almond, chocolate pecan, tropical or salty peanut.


Units Scale
  • 1 1/2 cups of rolled oats (quick or regular)
  • 1/2 cup sourdough starter (see above alternatives)
  • 2 eggs (see notes for vegan flax eggs option)
  • 1/4 cup sweetener (optional, see notes)
  • 2 Tbsp cooking oil
  • 1 tsp vanilla
  • 1/2 tsp salt
  • 1 cup mixed nuts, seeds, and dried fruit


  1. Mix rolled oats and the sourdough starter in a glass bowl. It will be quite dry. If you want to soak and ferment the oats, cover with a tea towel and leave them on the kitchen counter for up to 12 hours. 
  2. When you’re ready to bake, preheat the oven to 300 F (150 C).
  3. Beat in the eggs, sugar, oil, vanilla, and salt into the oats and sourdough. If you fermented the oats, then it will be very tough, so just keep mixing until everything is evenly distributed. However, it’s fine to make this recipe without fermenting the oats.
  4. Stir in 1 cup total of nuts, seeds, dried fruit, or chocolate chips. Feel free to use your favorite combination or see the section above for 5 delicious options.
  5. Grease an 8-inch square baking pan. Spread the granola bar mixture in the pan, and press so that it is firmly packed into the bottom of the pan.
  6. Bake for 50-60 min, until firm and browning around the edges. Remove from the oven and slice right away. Then allow the granola bars to cool before removing them from the pan.


  • The eggs in this recipe are used as a binder. However, flax is a really great binder as well. To replace the eggs with flax, use 2 Tbsp of ground flax mixed in a 1/4 cup of water. Leave it to sit and gel for 5 minutes, then stir into the granola bars.
  • This recipe can be made without any sweetener, however, a bit of sweetness is nice.  Feel free to use brown sugar, rice syrup, or maple syrup. Using a liquid sweetener will result in longer baking times.