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Slow Cooker Apple Crisp

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Easy Slow Cooker Apple Crisp with brown sugar cinnamon oat topping is the perfect way to use some of your favorite apples. Served warm or cold, this dessert is a favorite!

apple crisp topped with vanilla ice cream in a white bowl

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Fall is fast approaching, and so is the season of apples. I love apple desserts, but sometimes it’s just not practical to make a pie. This is where my slow cooker comes in handy! You can make an easy slow cooker apple crisp with a buttery, brown sugar, cinnamon oat topping without ever turning on your oven. 

This recipe makes making an apple crisp a breeze! The apples are cooked down with sugar and cinnamon until soft and tender and topped with oats that get all crispy in the crockpot. You’ll never want another apple crisp recipe again!

Best Apples for Apple Crisp

I like to use green apples that are nice and tart, but you can use any type. I used three large granny smith apples to make this recipe. If the apples at your local supermarket are more on the medium-small side I would get four or five. 

If the green apples are looking weathered you can also use Cortland, Fuji, Braeburn, Jonagold, etc. What you want is an apple that is known to be crisp with some tartness. If you go for a soft, sweet apple, you may end up with an apple crisp that tastes like pure sugar and mush.

close up shot of apple crisp in a crockpot

INGREDIENTS & EQUIPMENT

Below is a list of ingredients with some helpful tips and suggestions for substitutions. Scroll all the way down for the full, printable recipe card with amounts & instructions.

Ingredients for the Fresh Apple Crisp Filling:

APPLES – Use a tart apple. I used Granny Smith but Cortland, Fuji, Braeburn will also work.
LEMON – You’ll squeeze the juice of half a lemon over the apples to keep them from browning.
SUGAR – Granulated white sugar.
FLOUR – All purpose flour.
CINNAMON – Use a high quality cinnamon for the best flavor.

Cinnamon Oat Crumble Ingredients:

FLOUR – Again, all purpose white flour.
OATS – Old fashioned oats. Quick oats will not leave you with the same crisp texture.
SALT – To balance all the sweet.
CINNAMON – Again, high quality cinnamon, like ceylon.
BUTTER – Cold, cubed butter will be cut into the oats to make the crumble.

overhead shot of ingredients laid out to make apple crisp

TOOLS FOUND ON AMAZON TO HELP YOU

This apple crisp recipe doesn’t use anything too fancy as far as equipment goes. All you’ll need is a slow cooker, two medium-large mixing bowls, an apple peeler/corer, and a pastry cutter. If you don’t have an apple corer or pastry cutter on hand, you can use a regular fork. Both kitchen tools are handy to keep around, though, so think about adding one or both to your kitchen.

HOW TO MAKE EASY SLOW COOKER APPLE CRISP

Make The Slow Cooker Apple Crisp Filling:

STEP ONE: Prep the apples. Spray the slow cooker with non-stick spray. Wash, peel, and slice the apples to approximately 1/2″ thick and add them to the slow cooker. Squeeze the juice of half a lemon over the lemons & stir to coat.

STEP TWO: Make the sugary mixture. Stir together the sugar, flour, and cinnamon in a small bowl and pour over the apples. Stir to evenly coat.

collage of slow cooker with sliced apples & oat topping to make a crisp

Make The Brown Sugar Cinnamon Oat Crumble:

STEP THREE: Make the topping. To another small bowl, stir together the flour, oats, brown sugar, salt, and cinnamon. Add in the cold, cubed butter. Use a pastry cutter, or a fork, to incorporate the butter to the oat mixture. It will be crumbly. Pour the mixture evenly over the apples.

STEP FOUR: Cook. Line paper towel under the lid to help collect condensation and keep the topping crisp. Cook on HIGH for 1.5 hours. Remove the lid and cook for another 30-60 minutes to allow the topping to crisp.

Serve & enjoy!

overhead shot of bowl making apple crisp cinnamon oat topping

SLOW COOKER APPLE CRISP FAQs

Can I use canned apple pie filling instead of fresh apples in this recipe?

If you’re craving an apple crisp but don’t have any fresh apples and happen to have a can of apple pie filling in the pantry in a pinch, it will work. Just be sure to eliminate the sugar, flour, and cinnamon. The cooking time will also be cut down to about 30 minutes with the lid on, instead of an hour and a half for the fresh apples.

Is apple crisp the same as apple crumble? What about cobbler?

Nope! While they are very similar, it’s the topping that differentiates each delicious apple dessert. What makes an apple crisp, well, a crisp is the oat topping. Crumbles don’t contain oats (see my blackberry crumble), and cobbler is made with a biscuit/cake-like topping mix.

 How do I serve it?

This crockpot apple crisp is delicious served with a scoop of vanilla ice cream, whipped cream, or just plain. It’s great for any holiday gathering and so easy to make ahead!

spoonful of apple crisp and drippy vanilla ice cream

Can you use quick oats instead of rolled oats for crockpot apple crisp?

I do not recommend using quick oats in this recipe because the oat topping will be thin and will be missing that crispy texture you’re looking for. You’ll get a much better result with rolled oats or old-fashioned steel-cut oats.

How to keep apple crisp from getting soggy when storing?

On the off chance that you have any leftovers, you’ll want to store them in an air-tight container in the fridge. The oat topping will absorb some moisture from the apples, making it soggy. There isn’t anything you can do to prevent this. 

The apple crisp will still be delicious. It just won’t have that crispy crunch you get when eating it straight out of the slow cooker. You can do a low broil to help pull some of the moisture out and crisp the oats back up. If you do this, make sure to watch it carefully, as it will burn before you can blink!

slow cooker with paper towel under lid to catch condensation
When cooking the apple crisp, line the top of the slow cooker with paper towel to absorb condensation and keep your crisp…crisp!

Need more apple recipes? Try these:

Apple Cinnamon Bundt Cake
Apple Zucchini Bread
Apple Cinnamon Swirl Bread
Caramel Apple Poke Cake
Sheet Pan Apple Slab Pie with Oat Crumb Topping

Need more slow cooker desserts? Try these:

Crockpot Peanut Clusters
Crockpot Salted Caramel Fudge
Slow Cooker Triple Berry Cobbler
Pumpkin Cheesecake Bars

Click here for my entire collection of slow cooker recipes.

apple crisp in a slow cooker with a red spoon taking out a scoop

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apple crisp topped with vanilla ice cream in a white bowl

Slow Cooker Apple Crisp

Melissa Williams
Easy Slow Cooker Apple Crisp with brown sugar cinnamon oat topping is the perfect way to use some of your favorite apples. Served warm or cold, this dessert is a favorite!
4.8 from 5 votes
Prep Time 10 mins
Cook Time 2 hrs
Total Time 2 hrs 10 mins
Course Dessert
Cuisine American
Servings 6 servings
Calories 400 kcal

Ingredients
  

For the apple filling

  • 6 cups apples peeled & sliced to approx. ½” thin
  • Juice of half a lemon
  • cup granulated sugar
  • 2 Tablespoons flour
  • 1 teaspoon cinnamon

For the oat topping

  • ½ cup flour
  • ¾ cup old fashioned oats
  • ½ cup brown sugar
  • ¼ teaspoon salt
  • 1 teaspoon cinnamon
  • ½ cup cold butter cubed

Instructions
 

  • Spray a 6 qt slow cooker with non-stick spray.
  • Lay sliced apples into the bottom of the slow cooker. Squeeze juice of half a lemon over apples and stir to coat.
  • To a small bowl, stir together the sugar, flour, and cinnamon and pour over the apples. Stir to evenly coat.
  • To another small bowl, stir together the flour, oats, brown sugar, salt, and cinnamon. Once evenly mixed, add in the cold, cubed butter. Use a pastry cutter, or a fork, to incorporate the butter to the oat mixture. It will be crumbly.
  • Once combined, sprinkle the topping evenly over the apples.
  • Line the top of the slow cooker basin with paper towel and place the lid on top (this helps collect condensation and keep the topping crisp). Cook on HIGH for 1.5 hours. Remove the lid and cook for another 30-60 minutes to allow the topping to crisp.
  • Serve warm or cold with whipped cream or vanilla ice cream.

Notes

Granny Smith apples work well – this was 3 large apples for me – Fuji, Braeburn, Jonagold will also work.
Store leftovers in an airtight container in the fridge for up to 3 days.

Nutrition

Serving: 1gCalories: 400kcalCarbohydrates: 64gProtein: 3gFat: 16gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 1gCholesterol: 41mgSodium: 239mgPotassium: 216mgFiber: 5gSugar: 42gVitamin A: 542IUVitamin C: 6mgCalcium: 41mgIron: 1mg

Nutritional information is an estimate and provided to you as a courtesy. You should calculate the nutritional information with the actual ingredients used in your recipe using your preferred nutrition calculator.

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  1. Doug says

    5 stars
    My first try at the slow cooker apple crisp was a mixed bag. While quite flavorful, the apples in the bottom are fully cooked, while the top are still on the crisp side. This could be due to making a double batch at once in a single crock pot and may have to be avoided. Another thought is that it would be nice to stir the apple mixture part way through the cook, so that they would cook more evenly, and add the topping for the last hour uncovered, if that would allow it time enough to crisp?

    • Melissa Williams says

      It sounds like doubling was definitely the issue, it needed more time. Which size crock did you use?

    • Doug says

      Hi Melissa. Iirc, it was a 6qt. There was definitely plenty of room for the dbl batch. My first post was after the original cook time was met and the upper layers were still al dente. I was worried that by the time the upper layers were cooked, the bottom would be absolute mush. I tried a couple more hours on low anyways, and it ended up coming out really well, thankfully. If you think there is a way to start the bake without the topping and give it a stir partway, and still have the “crisp” turn out, I’d like to hear it. Or if you have a better idea for when making a dbl batch (I’d rather not do two separate batches).
      At the end of the day, it was delicious, smelled amazing and I definitely recommend the recipe. I’m making it again this week.
      Thanks
      -Doug

    • Melissa Williams says

      I’d have to play with it to see, I haven’t tested it that way. I’m so glad it still turned out well!

  2. Susan K. says

    4 stars
    I enjoyed making an apple crisp in the crock pot–I thought it was pretty easy & delicious. I used an early, light green apple (that I’m unsure of the name of), I thought it was fine that the apples cooked to a soft texture.

    It was still so hot in August when I saw & made this recipe, so using the crock pot was perfect! I like to warm up the kitchen with the oven when fall temps roll around.

    Next time, if I don’t have a lemon on hand, I won’t sweat it, as I didn’t think it made a huge difference for the dish. And definitely–use old fashioned oats!

  3. Amber says

    Does it have to be cubed butter?

    • Melissa Williams says

      If makes it easier to work with. What is the alternative?

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