There is one specific week in September where Kansas City finally stops pretending it is still summer. The evenings go cool, the light gets that low gold thing, and I open the back door instead of the AC. That is the week I make apple crisp. Not pie, because pie asks a lot of me emotionally. Crisp just wants apples, butter, and about ten minutes of actual effort.

This is the version I have landed on after a lot of mediocre attempts. The topping is thick and stays crunchy instead of dissolving into the fruit, the filling is jammy without turning into applesauce, and it uses things you almost certainly already have. My kids call it “the oatmeal cookie one,” which is not wrong.

Heads up, a few of the links below are affiliate links, which just means I get a tiny commission if you buy something. It costs you nothing and I only link stuff I actually use.

Why you will love this apple crisp

It is forgiving. Apples a little soft? Fine. Sliced unevenly? Also fine. Crisp is the most generous dessert there is.

The topping is the whole point here. Most recipes skimp on it and you end up with a sad dusting. This one gives you a real layer of brown sugar oat crumble, and the trick is cold butter worked in by hand so you get pebbly clumps instead of a paste. Those clumps are what crisp up.

It also makes the house smell like a candle you would pay too much for, and it feeds a crowd for about six dollars. If you are heading out to pick your own, I rounded up my favorite apple orchards near Kansas City too.

A whole baked apple crisp with golden oat crumble topping on a rustic wooden table

What you need

For the apple filling

6 medium apples, peeled and sliced (about 8 cups), a mix of Honeycrisp and Granny Smith
1/4 cup granulated sugar
2 tablespoons all purpose flour
1 tablespoon fresh lemon juice
1 1/2 teaspoons ground cinnamon
1/4 teaspoon ground nutmeg
1/4 teaspoon kosher salt
1 teaspoon vanilla extract

For the brown sugar oat topping

1 cup old fashioned rolled oats (not instant)
3/4 cup all purpose flour
3/4 cup light brown sugar, packed
1 teaspoon ground cinnamon
1/2 teaspoon kosher salt
1/2 cup cold unsalted butter, cubed (1 stick)

You will also want a 9×13 baking dish or a 10 inch cast iron skillet. The skillet version looks prettier on the table and I will not pretend that does not matter to me. If peeling six apples sounds like a personal attack, an apple peeler corer slicer is genuinely one of the few single use gadgets I keep.

How to make it

Heat the oven to 350F. Butter your dish and set it on a rimmed sheet pan. It will bubble over and you will be glad you did this.
Toss the filling. Peel, core, and slice the apples about a quarter inch thick. In a big bowl, toss them with the sugar, flour, lemon juice, cinnamon, nutmeg, salt, and vanilla until every slice is coated. Spread them in the dish in an even layer.
Make the topping. Whisk the oats, flour, brown sugar, cinnamon, and salt together. Add the cold cubed butter and work it in with your fingertips until you have clumps ranging from pea size to small pebbles. Do not overwork it into a dough.
Scatter, do not pack. Spread the topping over the apples loosely. The uneven bits are the ones that get crunchy.
Bake 45 to 55 minutes. You want the filling bubbling thickly at the edges and the top deep golden brown. If the topping browns before the fruit bubbles, tent it loosely with foil.
Let it rest 15 minutes. This is the hardest step in the whole recipe. The juices need that time to thicken up. Then serve it warm with vanilla ice cream.

A warm serving of apple crisp topped with a scoop of melting vanilla ice cream

Tips, swaps, and make ahead notes

Use two kinds of apples. Honeycrisp brings the sweetness and holds its shape, Granny Smith brings the tartness that keeps it from tasting like syrup. Braeburn, Jonagold, and Pink Lady all work. Red Delicious does not, it turns to mush.

Do not skip the lemon juice. One tablespoon does not make it taste lemony, it just wakes everything up.

Make it ahead. You can assemble the whole thing, cover it, and refrigerate it up to 24 hours before baking. Add about 10 minutes to the bake time since it is going in cold. Or make just the topping and keep it in a zip bag in the freezer, which I do every fall so I am always twenty minutes from dessert.

Variations I actually make. Swap half the apples for pears. Add a half cup of chopped pecans to the topping. A quarter teaspoon of cardamom in the filling is quietly excellent. For a gluten free version, use a one to one gluten free flour blend and certified gluten free oats.

The most common mistake is slicing the apples too thin. A quarter inch sounds chunky but they shrink a lot, and thin slices collapse into applesauce under the topping.

Quick recipe details

Prep time: 20 minutes
Bake time: 45 to 55 minutes
Resting time: 15 minutes
Total: about 1 hour 25 minutes
Servings: 10
Storage: Covered at room temperature for 2 days, or in the fridge for 5. Reheat uncovered at 350F for about 15 minutes so the topping crisps back up. It freezes baked for up to 3 months.

Print the recipe

Individual apple crisps with brown sugar oat crumble topping and fresh apple slices on a marble counter

Easy Apple Crisp with Brown Sugar Oat Topping

A warm, bubbling apple crisp with a thick brown sugar oat topping that actually stays crunchy. Made with everyday pantry ingredients and ready in about an hour.

Print Recipe Pin Recipe

Prep Time 20

Cook Time 50

Resting Time 15

Total Time 1 10

Servings: 10 servings

Course: Dessert

Cuisine: American

Ingredients Method Notes

Ingredients

For the Apple Filling

6 medium apples, peeled and sliced about 8 cups, a mix of Honeycrisp and Granny Smith
1/4 cup granulated sugar
2 tablespoons all purpose flour
1 tablespoon fresh lemon juice
1 1/2 teaspoons ground cinnamon
1/4 teaspoon ground nutmeg
1/4 teaspoon kosher salt
1 teaspoon vanilla extract

For the Brown Sugar Oat Topping

1 cup old fashioned rolled oats not instant
3/4 cup all purpose flour
3/4 cup light brown sugar, packed
1 teaspoon ground cinnamon
1/2 teaspoon kosher salt
1/2 cup cold unsalted butter, cubed 1 stick

Method

Heat the oven to 350F. Butter a 9×13 inch baking dish or a 10 inch cast iron skillet and set it on a rimmed sheet pan to catch drips.
Peel, core, and slice the apples about a quarter inch thick. Toss them in a big bowl with the granulated sugar, flour, lemon juice, cinnamon, nutmeg, salt, and vanilla until every slice is coated. Spread the apples in the dish in an even layer.
In another bowl, whisk together the oats, flour, brown sugar, cinnamon, and salt. Add the cold cubed butter and work it in with your fingertips or a pastry cutter until the mixture holds together in clumps the size of peas and small pebbles.
Scatter the topping over the apples. Do not pack it down. The loose, uneven bits are what get crunchy.
Bake for 45 to 55 minutes, until the filling bubbles thickly at the edges and the topping is deep golden brown. If the top browns before the fruit bubbles, tent it loosely with foil.
Let it rest at least 15 minutes before serving. This is the hard part. The juices need that time to thicken. Serve warm with vanilla ice cream.

Notes

Use a mix of firm apples so the filling holds its shape. Honeycrisp and Granny Smith together give you sweet and tart at once. Leftovers keep covered at room temperature for 2 days or in the fridge for 5. Reheat uncovered at 350F for about 15 minutes to bring the topping back.

The takeaway

Apple crisp is the dessert equivalent of putting on a sweatshirt. It does not require you to be impressive, it just requires you to be there. Make it on a Tuesday for no reason. Make it for the neighbor who watched your kid. Make it and eat the crunchy corner standing at the counter before anyone else gets a plate, which is a right I claim as the person who peeled the apples.

If you make it, tell me what apples you used and whether you went skillet or 9×13. Drop it in the comments, I read every single one.

So glad you are here.
xo, Pam