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A close up of a sourdough pineapple muffin on an orange cloth.
Sourdough Discard Muffins

Sourdough Pineapple Muffins with Active Starter or Discard

These sourdough pineapple muffins are sweet, tart, and full of tropical flavor. Packed with juicy pineapple, this recipe offers a summery way to use up excess sourdough starter.

Prep: 10 minutes
Cook: 30 minutes
Total: 40 minutes
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Recipe Index | Ferment | Sourdough Discard | Sourdough Discard Muffins

Sourdough Pineapple Muffins with Active Starter or Discard

These sourdough pineapple muffins are sweet, tart, and full of tropical flavor. Packed with juicy pineapple, this recipe offers a summery way to use up excess sourdough starter.

A close up of a sourdough pineapple muffin on an orange cloth.

Healthy Pineapple Muffins with Sourdough Discard

Sourdough isn’t just for bread! One of my all-time favorite ways to use sourdough starter in the summer is baking pineapple muffins.

Incorporating active sourdough starter or discard into pineapple muffins enhances flavor and texture while making them easier to digest.

Sourdough naturally contains beneficial yeast and bacteria, which break down gluten, fructans, and phytic acid, making baked goods easier to digest. This can be especially beneficial for those with gluten or FODMAP sensitivities.

Unlike traditional sourdough bread, muffins aren’t typically long-fermented, but you can ferment the batter overnight in the fridge for even better digestibility. Mix the batter, cover it, and refrigerate it overnight before portioning into a muffin tin and baking.

A table with a bowl of fruit, a bowl of eggs, and a bowl of flour.
A table with a bowl of wet ingredients for pineapple muffins.

The Key to Fluffy, Moist Muffins: Don’t Overmix!

One of the most important muffin-making tips? Avoid overmixing the pineapple muffin batter.

When you overmix, you develop the gluten strands in the flour too much, leading to dense, chewy muffins instead of light, tender ones.

How to Mix Muffin Batter Properly:

  • Add the fresh pineapple in with the dry ingredients (trust me).
  • Gently fold the wet and dry ingredients together.
  • Stop mixing when you see some streaks of flour. A few lumps and dry spots are ideal!

My other muffin baking tip is always to use a thin metal aluminum muffin tin with paper liners. A metal muffin tin works way better than a silicone muffin pan.

Mixing the ingredients for pineapple muffins in a white mixing bowl.
Hands use a measuring spoon to put muffin batter in a muffin tin.

Why Fresh Pineapple Works Best in Muffins

Using fresh pineapple gives these muffins a juicy, naturally sweet burst of flavor. Frozen and canned pineapples also work great in this recipe! If using frozen pineapple, defrost and drain off any excess liquid before using. For canned pineapple, drain thoroughly before using.

A person holding a muffin pan with some pre baked muffins in it.

Tropical Pineapple + Fruit Combo Muffins

This pineapple muffin recipe comes together in less than 10 minutes and only takes 30 minutes to bake. While I call for only pineapple in the recipe, you can totally use a mix of fruit in this recipe! Just evenly substitute half the pineapple in the recipe for a second fruit. Here are some of my favorite pineapple + other fruit combos. Let me know in the comments if you try any of these!

  • Blueberry and pineapple
  • Mango and pineapple
  • Orange and pineapple
  • Banana and pineapple
  • Carrot and pineapple
  • Coconut and pineapple
Hands peel off the muffin liner on a baked pineapple muffin.

Things You May Need:

12-Well Muffin Pan

12-Well Muffin Pan

A product image of a counter top oven showing the front face

Breville Smart Oven Air Fryer Pro

French Sourdough Starter

French Sourdough Starter

three sourdough spurtles made of wood

Teakwood Stirring Spatula for Sourdough

Handmade Mixing Bowls

Handmade Mixing Bowls

Close-up of baked sourdough pineapple muffin with caramelized crumb top on orange linen

Storing Baked Pineapple Muffins

Storing baked pineapple muffins properly ensures they remain fresh and delicious. Here are some tips on how to store them effectively:

  • Room Temperature Storage:
    • Allow muffins to cool completely.
    • Place them in an airtight container lined with paper towels to absorb excess moisture.
    • Store at room temperature for up to 3-4 days.
  • Refrigeration:
    • If the weather is hot or humid, consider refrigerating the pineapple muffins.
    • Wrap each muffin individually in plastic wrap to prevent drying out.
    • Store in an airtight container in the fridge for up to one week.
  • Freezing Muffins:
    • Cool muffins completely before freezing.
    • Wrap each muffin tightly in plastic wrap or aluminum foil.
    • Place wrapped muffins in a freezer-safe bag or container.
    • Label it with the date and freeze it for up to 3 months.
  • Reheating Frozen Muffins:
    • Remove the desired number of pineapple muffins from the freezer.
    • Unwrap and place on a microwave-safe plate.
    • Microwave on high for 20-30 seconds or until warm.
    • Alternatively, preheat the oven to 350°F (175°C) and heat muffins for 10-15 minutes until warmed.
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A close up of a sourdough pineapple muffin on an orange cloth.
Sourdough Discard Muffins

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Sourdough Pineapple Muffins with Active Starter or Discard

These sourdough pineapple muffins are sweet, tart, and full of tropical flavor. Packed with juicy pineapple, this recipe offers a summery way to use up excess sourdough starter.

  • Prep: 10 minutes
  • Cook: 30 minutes
  • Total Time: 40 minutes

Ingredients

  • 2 1/4 cups all-purpose flour
  • 1/3 cup sugar
  • 1/2 teaspoon baking soda
  • 1 teaspoon baking powder
  • 1 teaspoon salt
  • 1 1/2 cups pineapple, chopped
  • 1/2 cup grass-fed butter, room temperature soft/melted
  • 1/2 cup sourdough starter, room temperature*
  • 1 teaspoon lemon extract
  • 1/2 cup whole milk, room temperature
  • 2 eggs, room temperature
  • Extra fresh pineapple for topping

Instructions

  1. Preheat your oven to 350° F.
  2. Line a muffin tin with paper liners.
  3. In a medium-large mixing bowl, combine the flour, sugar, baking soda, baking powder, salt, and pineapple.
  4. In a separate bowl, combine the butter, sourdough starter, lemon extract, whole milk, and two eggs.
  5. Whisk until combined.
  6. Gently fold the wet ingredients into the dry ingredients until everything is just combined. Do not over-mix. The batter should be thick, and it’s okay if there are clumps.
  7. Spoon the batter into the muffin tins. Optional— top with more fresh pineapple chunks.
  8. Bake for about 30 minutes total. Rotate the pan halfway through.
  9. Allow cooling for about 15 minutes.

Notes

  • Frozen and canned pineapples also work great in this recipe! If using frozen pineapple, defrost and drain off any excess liquid before using. For canned pineapple, drain thoroughly before using.
  • Use active starter or discard from the fridge, either way it’s “discarded” into the recipe since it isn’t used for rise. 

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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My favorite topic I teach in our online course is My favorite topic I teach in our online course is called Fermentation Variables. The whole lesson is centered around the fact that there are six main variables that influence the outcome of fermentation.

Here they are, in no particular order:

Sugar
Salt
Oxygen
Acidity
Temperature
Time

Temperature and time depend on each other most closely. 

that means, for all of our foods and drinks that ferment at room temp, things slow way down in the winter cold. 

The fermentation timeline is simply longer when it’s colder (and faster when it’s hotter). The microbes, kind of like us, make things happen slowly in the cold winter. 

I think this is yet another sign from nature that we’re supposed to rest and be gentle and gracious with deadlines, work, and not rush things this time of year. 

Let it be slow, it’ll still be great, it just takes a little more patience and time. 

If you’re looking to start fermentation as an analog hobby in the new year, our courses are 40% off right now! You can use code NEWYEARS at checkout. (Yes, you learn online, but it’s delicious, long form content + the skills are life long). What you learn empowers you to get off the computer/phone and go ferment some delicious foods and drinks. 

Touching cabbage and dough is just as good as “touching grass” lol 

Let me know if you have questions about our courses or just fermentation in general in the comments!

#fermentation
Yes cooking kills the microbes, but idc. I mean, I Yes cooking kills the microbes, but idc. I mean, I care, but in a “thank you for your service microbes” kinda way. 🫡

Cider braised pork and sauerkraut is a perfect choice for New Year’s or any winter meal! I lovvveee pairing it with butternut squash polenta bc it’s full of vitamin C for cold and flu szn. 

Eating pork and sauerkraut on New Year’s Day is a tradition. And I really do think it brings good luck and prosperity.

Get the recipe on our blog, linked in my profile and in story highlights! 

I’m really looking forward to creating more recipes like this in the new year, to show you all the joys of incorporating ferments into meals and recipes 😌✨ stay tuned! 

#newyear #sauerkraut #fermentation
One Christmas I gifted everyone in my family the N One Christmas I gifted everyone in my family the New York style sourdough bagels and they were thrilled. (The bagels we’re actually way under proofed, but I still gifted them and everyone loved them lol)

You can get the full recipe on my blog! And these can be made with discard and instant yeast or with just active starter.

 All the details are in the 5-star rated recipe on my website. 

#bagels #sourdough
This cookie dough is long-fermented overnight in t This cookie dough is long-fermented overnight in the fridge for the softest, most flavorful, melt-in your mouth sourdough gingerbread cookies.

For Christmas 2025, I tried something new with these cookies. I created a gingerbread sourdough starter to use in this recipe! I made it by feeding some of my established starter a mix that includes molasses and gingerbread spices. I just added the instructions for the gingerbread starter in the notes of my cookie recipe.

Get the full recipe and directions on my website! https://cultured.guru 

You can use the recipe index to see all my Christmas season recipes!

#gingerbread #sourdough
My gingerbread sourdough starter recipe 🎄✨ Like a My gingerbread sourdough starter recipe 🎄✨

Like and save for some fun Christmas sourdough baking! 

I made this up a few days ago to use in my soft sourdough gingerbread cookies. (cookie recipe is in my recipe index on my website!)

#sourdough #gingerbread
Christmas gift feta cheese🧀🎄✨ Part two of my four Christmas gift feta cheese🧀🎄✨

Part two of my four part series on homemade fermented foods to gift this holiday season! This one takes about five days total to prepare, so start now if you plan to gift this one on Christmas. 

GOOGLE “cultured guru feta” to get my feta recipe any time! You can also use the recipe index linked in my bio! 

#fermentation
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