Sourdough Apple Pie Oat Bars with Fresh Milled Flour

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Sourdough discard can pile up faster than laundry, but these sourdough discard apple pie oat bars are your answer. It’s like a hearty bowl of apple spice oatmeal on the go and one of my favorite ways to enjoy the fall season. 

8 slices of apple pie oat bars on parchment paper

They’ve got the warm, spiced flavor of apple pie, the nutty depth of fresh-milled flour and oats, and the slight tang of sourdough discard that makes the flavor pop without tasting sour.

Made with simple ingredients, it’s perfect as a dessert, breakfast bars, or a great option for meal prep and snacking this time of year when you want some cozy flavors and don’t need a whole pan of baked oatmeal. You can bake once and enjoy them all week, if you can wait that long!

Want to try some other apple desserts and snacks? Try Sourdough Apple Pie Cobbler, Instant Pot Applesauce, or Canned Apple Pie Filling. For other snacks and healthy recipes, give Roasted Beet Hummus or Baba Ganoush a try!

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Why You’ll Love Apple Pie Oatmeal Bars

Let’s be real, life can be chaotic, and breakfasts and snacks sometimes end up being whatever you can grab the fastest. But what if your grab-and-go items tasted like apple pie? These tender bars taste like apple cinnamon oatmeal (you know the packets you loved growing up, yes, those!). 

If you’ve ever milled your own whole grains, you know how nutty, tender, and downright amazing fresh-milled flour tastes compared to store-bought. You’ve basically got dessert for breakfast or snack time… except it’s wholesome enough to eat without too much guilt. Fresh milled flour gives these an extra boost in the flavor and nutrition departments. 

These are so quick and easy to make too! No mixer, just a bowl and a whisk will have you on your way.

Apple Pie Oat Bars Recipe

Tools

Ingredients

  • 75 grams Sourdough Discard (1/3 Cup)
  • 120 grams Coconut Oil (1/2 Cup), melted
  • 80 grams Honey (1/3 Cup), or pure maple syrup
  • 4 grams Vanilla Extract (1 teaspoon)
  • 180 grams Oats (2 Cups), old-fashioned or quick oats work fine
  • 145 grams Soft White Wheat (3/4 Cup of berries)
  • 2 grams Ground Cinnamon (1 teaspoon)
  • 5 grams Salt (1 teaspoon)
  • 200 grams Apple Pie Filling (2/3 Cup), doesn’t have to be exact

Notes

  • For best results – measure/weigh whole wheat berries before milling
  • Makes about 8 bars, but can be cut larger or smaller
  • We use homemade diced apple pie filling, but any apple pie filling will work

How to Make Sourdough Apple Pie Oatmeal Bars

Prep: Preheat oven to 350°F. Use parchment paper to line an 8×8 baking pan. Weigh/measure wheat berries and set aside.

Wet Ingredients: Whisk together sourdough discard, honey, melted coconut oil, and vanilla until smooth.

mixing together sourdough discard, honey, vanilla, and coconut oil with a danish wishk

Dry Ingredients: Mill your flour right on top of the wet ingredients, add cinnamon and salt, then gently mix it together, then add in oats and gently fold the dough mixture until just combined.

whisking together wet ingredients with flour, cinnamon, and oats to form a batter

Make Bars: Place about 1/2 the dough mixture evenly in the bottom of the prepared pan, pressing it in well with a spatula.

first layer of apple pie oat bars pressed into parchment paper in a baking dish

Spread the apple pie filling over the bottom layer.

layer of apple pie filling added to bottom layer of oat bars

Then top with the remaining dough, gently pressing it flat on top. Don’t press too hard or the filling will push to the outside. Rest on the counter for 10 minutes to allow the flour to hydrate before baking.

top layer of apple pie oat bars pressed

Bake: Bake for 30-35 minutes, until the edges start to turn golden brown.

pan of baked apple pie oat bars

Cool & Serve: Let baked bars cool to room temperature in the pan, then place in the fridge for about 30 minutes to make it easier to slice. Or just dig in if you don’t care about neat squares!

three slices of apple pie oat bars on a white counter

Variations on Sourdough Apple Pie Oat Bars

You can eat these scrumptious apple oatmeal bars all on their own or even serve with a scoop of ice cream. For more fun, try adding chopped pecans or walnuts for a nutty crunch or stir in a handful of dried cranberries for more tang. 

You can even drizzle with a little apple cider glaze or creamy peanut butter once cooled for a more desserty bar, perfect for potlucks and fall parties.

These delicious apple pie bars are proof that leftovers can turn into something delicious. They’re wholesome enough for breakfast but tasty enough to double as dessert. And let’s be honest—your fridge will thank you for finally putting that discard to good use.

8 slices of apple pie oat bars on parchment paper

Sourdough Apple Pie Oat Bars with Fresh Milled Flour

Yield: 8 Bars
Prep Time: 20 minutes
Cook Time: 30 minutes
Additional Time: 30 minutes
Total Time: 1 hour 20 minutes

Wholesome apple pie oatmeal bars made with fresh milled flour, oats, homemade apple pie filling, and sourdough discard. Cozy and tasty!

Ingredients

  • 75 grams Sourdough Discard (1/3 Cup)
  • 120 grams Coconut Oil (1/2 Cup), melted
  • 80 grams Honey (1/3 Cup), or pure maple syrup
  • 4 grams Vanilla Extract (1 teaspoon)
  • 180 grams Oats (2 Cups), old-fashioned or quick oats work fine
  • 145 grams Soft White Wheat Berries (3/4 Cup of berries)
  • 2 grams Ground Cinnamon (1 teaspoon)
  • 5 grams Salt (1 teaspoon)
  • 200 grams Apple Pie Filling (2/3 Cup), doesn't have to be exact

Instructions

  1. Preheat oven to 350°F. Use parchment paper to line an 8x8 baking pan. Weigh/measure wheat berries and set aside.
  2. Whisk together sourdough discard, honey, melted coconut oil, and vanilla until smooth.
  3. Mill your flour right on top of the wet ingredients, add cinnamon and salt, then gently mix it together.
  4. Add in oats and gently fold the dough mixture until just combined.
  5. Place about 1/2 the dough mixture evenly in the bottom of the prepared pan, pressing it in well with a spatula.
  6. Spread the apple pie filling over the bottom layer.
  7. Top with the remaining dough, gently pressing it flat on top. Don't press too hard or the filling will push to the outside.
  8. Rest on the counter for 10 minutes to allow the flour to hydrate before baking.
  9. Bake for 30-35 minutes, until the edges start to turn golden brown.
  10. Let baked bars cool to room temperature in the pan, then place in the fridge for about 30 minutes to make it easier to slice.

Notes

  • For best results - measure/weigh whole wheat berries before milling
  • Makes about 8 bars, but can be cut larger or smaller
  • We use homemade diced apple pie filling, but any apple pie filling will work

Nutrition Information
Yield 8 Serving Size 1
Amount Per Serving Calories 313Total Fat 15gSaturated Fat 12gTrans Fat 0gUnsaturated Fat 2gCholesterol 0mgSodium 296mgCarbohydrates 41gFiber 4gSugar 17gProtein 5g

*This has not been evaluated by the FDA

FAQS

Will these apple oat bars taste sour from the discard?

No, they won’t! The sourdough discard adds a subtle tang and moisture, but doesn’t overpower the apple pie flavors because it doesn’t have time to ferment.

Can I ferment the batter overnight?

Yes, if you want more sourdough flavor, mix everything for the dough together, then cover and rest at room temperature for 8–12 hours. Assemble in the morning, then bake.

How do I store them?

Store in an airtight container at room temperature for 2–3 days, refrigerate up to a week, or freeze for longer term storage. They are best eaten within a couple of days.

Can I use whole wheat flour instead of fresh-milled?

Yes, you may need to adjust the amount of flour with store-bought whole wheat, so add it in slowly. 

apple pie oat bars with sourdough pinterest image

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