This easy apple crisp is made in the cast iron skillet with oatmeal as the topper. This is a perfect fall dessert to use up extra apples. Cast Iron Apple Crisp is a simple yet delicious old fashioned dessert. Perfect topped with ice cream or whipped cream for a crowd.

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Tips and Tricks

Do you have to use a cast iron skillet to make this apple crisp? Absolutely not. I used it for a couple of reasons. 1) The first time I made this recipe, I had just gotten it and wanted to use it as much as possible 2) I like to cut down on pans. You can caramelize your apples and bake the crisp in the same pan! 3) it looks really pretty

If you don’t want to use or don’t have a cast iron pan, caramelize the apples and then transfer to a 9×9 pan. You can use something bigger, but it will be a thinner crisp and take less time to cook.


How do you store apple crisp? The best way to store apple crisp is to eat it all at once. Okay, I’m only kind of kidding. To store for a few days, just cover with plastic wrap and leave it on counter. If you want it to last a few days longer, I’d remove it from the cast iron skillet and make sure it is completely cooled. Cover it with plastic wrap and place in the fridge. 

How long is apple crisp good for? Apple crisp is best the first few days after you make it. However, if you need to store apple crisp for longer, remove from the cast iron pan and store in the fridge for up to four days. 

How do you reheat apple crisp? The best way to reheat apple crisp is in the oven on 350F for about 20-30 minutes until warmed through. This is the best way to do it if the topping isn’t as crisp as you want it. However, you can also take a slice out of the cast iron skillet and warm it in the microwave. 


What are the best apples to use? I typically use a combo of cortland, empire and granny smith apples. These are all good baking and eating apples and have a variety of textures and flavors. I’d recommend not using all of one type of apple to get a deeper flavor and the best texture. Some types of apples, like red delicious, will break down very quickly and become mushy.  I’d avoid them if possible for this application.

What type of oats is best to use? I use old fashioned oats or rolled oats. Avoid instant cooking oats or quick oats because they will break down while baking. It is best to avoid steel cut oats as well because they will not have a great texture. 


How do you make cast iron apple crisp? Preheat the oven to 350F. Next, peel and cut about six medium apples. The best apples to use are a mix of cortland, empires and granny smith. Put the cut apples in a large mixing bowl. Preheat a 10 inch cast iron pan over medium low heat and melt the butter. Once the butter is melted, whisk in cinnamon, brown sugar and salt until it turns into a paste. Pour this paste over the apples and mix well until coated. Turn the heat up to medium heat and allow the apples to cook for about 5 minutes, stirring continuously until apples begin to soften. Remove pan from the heat and make the topping. In a separate mixing bowl mix all topping ingredients, except the cinnamon, breaking up the pieces of butter with your fingers until they are pea sized. Add the topping to the apple mixture and ensure even coverage. Sprinkle cinnamon over the top and bake for 35-40 minutes until apples are fork tender, filling is bubbling and topping is crispy. 

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An overhead shot of an apple crisp in a cast iron skillet on a dark gray background. Whole apples scattered around the skillet.
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5 from 1 vote

Cast Iron Skillet Apple Crisp

This easy apple crisp is made in the cast iron skillet with oatmeal as the topper. This is a perfect fall dessert to use up extra apples. Cast Iron Apple Crisp is a simple yet delicious old fashioned dessert. Perfect topped with ice cream or whipped cream for a crowd.
Prep Time5 mins
Cook Time40 mins
Total Time45 mins
Course: Dessert
Cuisine: American
Keyword: Apple, Cast Iron, Dessert
Servings: 6 Servings
Author: Samantha



  • 6 medium apples peeled, cored and cut into small pieces
  • 3 tablespoons unsalted butter
  • packed cup brown sugar
  • 2 teaspoons ground cinnamon
  • teaspoon kosher salt


  • 1 ¼ cup old fashioned oats
  • 2 tablespoons AP flour
  • 5 tablespoons cold unsalted butter
  • cup brown sugar
  • teaspoon kosher salt
  • Sprinkle of ground cinnamon


  • Preheat oven to 350 F.
  • Ensure apples are washed, peeled, cored and cut into bite sized pieces and put into a large mixing bowl.
  • Place 10 inch cast iron skillet over medium low heat and melt the butter for the filling.
  • Once the butter is melted, whisk in brown sugar, cinnamon and salt.
  • Pour the butter mixture into the mixing bowl containing the apples and toss until apples are coated.
  • Add the apples and butter back into the skillet and turn the heat up to medium. Continuously stir while it cooks for 5 minutes, until apples begin to soften. Remove the pan from the heat, but keep the apple mixture in it.
  • After the apples are partially cooked, cut the 5 tablespoons of butter into 5 separate pieces.
  • Except the ground cinnamon, mix all topping ingredients together in a medium mixing bowl. It is easiest to combine with a pastry cutter or hands. It is okay to have small lumps of butter throughout the mixture.
  • Top the apples in the skillet with the topping evenly and place in the oven. Sprinkle cinnamon on top.
  • Bake for 35-40 minutes, until apples are tender and topping is crunchy.


  • Use an assortment of apples to have a variety of textures and flavors
    • Cortlands, Empires, Granny Smith work best

Originally posted on November 13, 2018. Tips updated and republished on October 2, 2019

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  1. Amy K.

    December 7, 2020

    This was a big hit at our Thanksgiving dinner this year. I topped it with ice-cream. We even indulged on it again the next morning and called it “breakfast”!

  2. Samantha

    December 7, 2020

    I like the way you think Amy! I’ve decided eaten this for breakfast, it’s got oatmeal, it totally counts. Thanks for sharing


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