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finished sourdough cranberry oatmeal cookies on a white counter top. The center cookie has a bite taken out.
Sourdough Discard

Sourdough Cranberry Oatmeal Cookies (Slice and Bake Cookies)

Perfect for using up leftover fresh cranberries, these easy slice-and-bake cranberry oatmeal cookies with sourdough starter are going to be a hit!

Prep: 15 minutes
Cook: 15 minutes
Total: 8 hours 30 minutes
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Recipe Index | Ferment | Sourdough Discard

Sourdough Cranberry Oatmeal Cookies (Slice and Bake Cookies)

Perfect for using up leftover fresh cranberries, these easy slice-and-bake cranberry oatmeal cookies with sourdough starter are going to be a hit!

finished sourdough cranberry oatmeal cookies on a white counter top. The center cookie has a bite taken out.

Soft and Chewy Cranberry Oatmeal Cookies

There’s something extra special about baking during the holiday season, and these soft and chewy cranberry oatmeal cookies are the perfect treat to add to your festive holiday spread.

Made with nourishing sourdough discard, tart fresh cranberries, hearty oats, and a touch of creamy white chocolate, these cookies combine cozy and comforting flavors. Whether you’re sharing them with loved ones or enjoying them by the fire, these cookies will indeed become a holiday favorite!

Mixing the Cranberry Oatmeal Cookies

Achieving the perfect cookies requires a strategic approach to mixing the dough. The order in which you combine the ingredients can significantly impact the texture and flavor of your cookies. Here’s a recommended order for mixing cookie dough ingredients:

  • Butter: Start by creaming room-temperature browned butter with your sugar. Creaming the butter and sugars together helps create a light and tender cookie texture.
  • Sourdough Starter: add the sourdough starter as an egg replacement, along with any additional wet ingredients, like vanilla extract, to the butter and sugar. The starter adds moisture and a unique tangy flavor to the cookies.
  • Dry Ingredients: In a separate bowl, combine the dry ingredients: flour, baking soda, baking powder, and salt. Gradually add this mixture to the wet ingredients, stirring until just combined. Overmixing can result in tough cookies, so be careful not to overwork the dough.
  • Cranberry and white chocolate mix-ins: Gently fold in the white chocolate and fresh cranberries. These additions give your cookies their distinct flavor.
  • Chill the Dough: Roll the dough up in parchment paper, then refrigerate it overnight in the fridge or for a few hours in the freezer. Chilling the dough allows the flavors to meld and the cookies to hold shape during the baking.

Chilling the cranberry oatmeal cookie dough

After you mix the cookie dough, you need to form and wrap the dough in parchment paper for chilling. The dough must be firm and chilled solid before you can slice it.

Chilling the dough allows the butter to solidify and fully absorb into the flour. If you try to skip the chill step, the cookies will spread and melt in the oven, and no one wants that.

How to coat and slice cranberry oatmeal cookies

My favorite aspect of slice-and-bake cranberry oatmeal cookies is the crust. After chilling, the logs can be rolled in crunchy toppings like raw sugar, natural sprinkles, or nuts, adding texture and flavor.

To coat the cookie dough log, spread the toppings evenly on a sheet pan, then roll and press the log into them. If the chilled log doesn’t stick well, I alternate between rolling and pressing the coating with my hands.

If the coating isn’t adhering, you can brush the cookie dough logs with an egg wash made of 1 egg white and 1 tablespoon of water to help it stick better.

The best technique to slice the cookie dough

These cookies are filled with chunky bits, making them visually appealing and delicious, but slicing can be tricky.

Use a large, extremely sharp knife and cut quickly, pressing down firmly without sawing back and forth.

Can the cookie dough ferment in the fridge overnight?

For best results, chill the dough overnight in the fridge. This allows for a long fridge ferment, making the cookies easier to digest. The dough can be kept in the fridge for up to 2 days before slicing and baking.

Can I freeze the dough?

Yes! You can freeze either the logs or the sliced cookie. If freezing, place the logs rolled in parchment paper in an airtight container.

More Sourdough Cookie Recipes to Try

  • Sourdough Miso Chocolate Chip Cookies with Brown Butter
  • Lemon Blueberry Cookies (Blueberry Muffin Cookies)
  • Sourdough Chocolate Chip Cookies with Pumpkin and Pecans
finished sourdough cranberry oatmeal cookies on a white counter top. The center cookie has a bite taken out.
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finished sourdough cranberry oatmeal cookies on a white counter top. The center cookie has a bite taken out.
Sourdough Discard

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Sourdough Cranberry Oatmeal Cookies (Slice and Bake Cookies)

Perfect for using up leftover fresh cranberries from the holidays, these easy slice-and-bake cranberry oatmeal cookies with sourdough starter are going to be a hit!

  • Prep: 15 minutes
  • Cook: 15 minutes
  • Total Time: 8 hours 30 minutes

Ingredients

  • 170 g all-purpose flour
  • 50 grams rolled oats
  • 1/4 tsp baking powder
  • 1/4 tsp baking soda
  • 1/2 tsp salt
  • 115 g salted butter*
  • 150 g sugar
  • 100 g sourdough starter*
  • 1 tsp vanilla extract
  • 3/4 cup minced fresh cranberries (or craisins)
  • 1/2 cup chopped white chocolate (or chips)
  • sprinkles (optional, for coating)

Instructions

  1. Brown the butter in a small saucepan until bubbly, and dark golden. Stir it continuously, careful to not burn it.
  2. Remove from heat and allow the butter to cool completely to room temperature.
  3. In a separate bowl, combine the dry ingredients (flour, baking soda, baking powder, salt).
  4. Once the butter has cooled completely but is still liquid, to a large bowl add the brown butter, sugar, vanilla extract, and sourdough starter. Combine with a whisk or hand mixer until even.
  5. Fold the combined dry ingredients into the wet ingredients. Stir until well combined.
  6. Add your chocolate and cranberries.
  7. Form the dough into a long shape and wrap it tightly in parchment paper. Refrigerate overnight.
  8. After refrigerating, preheat the oven to 350°
  9. (Optional) sprinkle some sugar and sprinkles onto a sheet pan. Unwrap the cookie dough and roll the log in the toppings.
  10. Line a cookie sheet with parchment paper. Slice the cookie dough into half inch thick slices.
  11. Place the cookie dough slices about two to three inches apart on the lined cookie sheet.
  12. Bake for 15-18 minutes or until the edges are a very pale golden brown and the tops have turned matte.
  13. Let them sit on the cookie sheet until they are completely cool.

Notes

  • You can use discard from the fridge or active starter. Either way it is “discarded” into this recipe since it is not used for rise. I keep a thick starter, so a thin watery starter will give you a different texture in these cookies.
  • if you do not like a cookie with a balanced salty-sweet flavor, use unsalted butter or reduce the added salt.

Did you make this recipe?

Please leave a 5-star review below if you loved it! Tag @cultured.guru on Instagram

 

Nutrition information is auto-calculated and estimated as close as possible. We are not responsible for any errors. We have tested the recipe for accuracy, but your results may vary.

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Kaitlynn Fenley Author, Educator, Food Microbiologist
Kaitlynn is a food microbiologist and fermentation expert teaching people how to ferment foods and drinks at home.
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hey i’m kaitlynn, i’m a microbiologist and together with my husband jon we are cultured guru.

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  1. Anonymous
    12|22|2024

    What is the oven temperature?

    Reply
    1. Kaitlynn Fenley
      12|22|2024

      350 F (listed in direction step 8)

      Reply

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This earthy, tart, and naturally effervescent booc This earthy, tart, and naturally effervescent booch is rich in probiotics and health benefits. So you should make some to share with friends and family around the table next week! 🫧✨🥂

It’s extra fizzy too, thanks to the high levels of the FODMAP fructan in beet juice. The microbes metabolize the fructans to make the bubbles, so fermented beet juice kombucha is much lower in FODMAPs than plain beet juice! 

You can try the recipe by visiting the recipe index linked in my bio. #kombucha
Yes, they smell like farts. YES you should still m Yes, they smell like farts. YES you should still make them, because the fart smell is a really good indicator that the microbes are making the beneficial compounds in the Brussels sprouts more bioavailable. ✨🫧

Get the recipe on my website https://cultured.guru
is this rage bait? 🤠 #kombucha is this rage bait? 🤠

#kombucha
I decided to try using my sourdough discard with t I decided to try using my sourdough discard with this packaged brownie mix and left over s’mores stuff from our latest camping trip!

Sourdough starter makes brownies a little more cake-like, so I had to up the fats in the recipe a bit to keep them moist and used a combo of brown butter and oil. 

Get the recipe for these moist cakey sourdough s’mores brownies on my website, and let me know if you try it!

My recipe index is linked in my bio. https://cultured.guru/blog/brown-butter-sourdough-smores-brownies-from-box-mix
Fermented garlic honey, and I make mine as an oxym Fermented garlic honey, and I make mine as an oxymel 

🍯✨🫧🧄 the recipe is on my website!
https://cultured.guru

Many historical texts mention the use of both garlic and honey in traditional medicine. Still, none explicitly describe the modern method of combining only these two ingredients and leaving them to ferment. In all my readings on fermentation history, I’ve never come across any historical descriptions of fermented garlic honey, made with only garlic and honey.

However, I did come across many accounts of over 1,200 types of oxymel in Ancient Greece and Persia, many of which include garlic.The ancient Greeks and Persians used oxymels to extract and preserve potent herbs, including garlic. Oxymel is an ancient preparation, and Hippocrates wrote records about its benefits around 400 B.C.E. in On Regimen in Acute Diseases.

The thing to note here is that oxymel uses a combination of honey and raw vinegar.

When we make fermented garlic honey as an oxymel, the pH starts at a safe acidity and remains at a safe acidity (below 4.6). This is because the microbes in raw vinegar (or raw kombucha) ensure the honey is metabolized into more acids. These microbes “eat” sugars similarly to the way they do when making kombucha, wild mead, and vinegar. When we add raw vinegar or raw kombucha to a garlic honey oxymel, we are guaranteeing the presence of many acid-producing microbes that keep the mixture acidic and safe.

PSA: I’m not saying that your garlic honey made without raw vinegar is destined to have botulism. But I am saying without raw vinegar/kombucha it is a concern, and it can happen. I am saying that I’m not comfortable making it without raw vinegar/kombucha. 

I have compiled all my thoughts on garlic honey and botulism in the blog post, linked in my bio! You can also type “cultured.guru” right into your web browser and the recipe blog is on my homepage. 

#garlic #honey
Oxymel is a medicinal herbal elixir, made through Oxymel is a medicinal herbal elixir, made through the fermentation of herbs in honey and raw vinegar. 

It’s my favorite time-tested herbal remedy that’s over 2,400 years old. It originated in ancient Greece and Persia, where it was considered a gift from the gods.

Hippocrates, the famous ancient Greek physician, was a staunch advocate of oxymel and incorporated it into his medical practices. Depending on the herbs used to make it, oxymel can help with many ailments and improve health in various ways!

In a world where everyone is asking AI, I set out to learn about the best herbal combinations from real, practiced experts in herbalism.

I felt so much joy collaborating with these herbalists @openspace.center @karlytheherbalist @lilianaruizhealy and @the.brettivy to recommend the best medicinal herb combinations in this recipe!

You can get my oxymel recipe from the link in my bio!
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