These apple crisp bars are made with a shortcrust base, topped with a spiced apple mixture, a buttery crumble topping, and caramel sauce.
If you love apple pie and apple crisp, these bars bring the best of both together in one simple slice.
The buttery shortbread base holds up perfectly under a thick layer of tender apples tossed with warm cinnamon and nutmeg, while the golden oat topping adds the ultimate crunch to every bite.
Finished with a rich caramel drizzle, they are easy to make and are so delicious. Served with vanilla ice cream, they are a dream come true!
For more apple desserts, check out my apple pie cookies, apple cinnamon rolls, apple crumble cake, apple fritters, and apple crumble muffins.
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Why this recipe works
- Sturdy Shortbread Crust: Pre-baking the buttery shortbread base guarantees a crisp, solid bottom layer that holds up to the apple pie toppings without ever turning soggy.
- Juicy Spiced Apple Layer: Slicing firm apples to a medium thickness ensures they bake up tender and juicy while maintaining a tasty bite.
- Oat Crumble Topping: The combination of rolled oats, brown sugar, and real butter bakes into a crunchy, golden topping that adds contrast to every single square.
- Caramel Finish: Drizzling warm caramel sauce over the cool crumble ties the spiced fruit and buttery crust together for a gorgeous finish.
Ingredients
Before making this recipe, measure and prepare your ingredients so the baking process goes smoothly. Full measurements are in the recipe card at the bottom of the page.
The Shortbread Crust
All-purpose flour: Creates a sturdy, melt-in-your-mouth shortbread base. Cake flour works as well.
Unsalted Butter: Melted and mixed into the flour for a rich, buttery crust. If using salted butter, skip the salt.
Granulated Sugar: Sweetens the shortbread base just enough to balance the tart apples. Caster sugar works great too.
The Apple Filling
Fresh Apples: Tart, firm apples like Granny Smith or Honeycrisp hold their structure best during baking.
Granulated Sugar: Sweetens the fruit layer and helps release natural apple juices as it bakes.
Warm Spices: Cinnamon and nutmeg give the apples that signature cozy autumn flavor.
Fresh Lemon Juice: Balances the overall fruit flavor and prevents the apple slices from browning.
Unsalted Butter: Melted into the fruit mixture to create a silky, caramelized apple sauce right in the pan.
The Crumble Topping
All Purpose Flour: Gives the crumble topping the structure needed to hold its shape.
Rolled Oats: Old-fashioned oats give the topping a hearty crunch. Quick oats work as a fine substitute.
Brown Sugar: Adds a deep molasses flavor that caramelizes beautifully in the oven.
Melted Butter: Binds the oats, sugar, and flour together into golden clusters. Use unsalted butter.
Instructions
Bake the Shortbread Crust
Preheat your oven to 180°C (350°F) and line an 8 by 8-inch baking pan with parchment paper.
In a medium bowl, combine the flour, sugar, and salt.
Pour in the melted butter and vanilla extract, stirring with a spoon until a uniform dough forms.
Press the dough evenly into the bottom of your prepared pan using your hands or the back of a spoon. Bake for 15 to 20 minutes until lightly golden. Set aside to cool slightly.
Prepare the Filling and Crumble
Peel, core, and slice the apples into medium slices. In a large bowl, toss the apple slices with cinnamon, nutmeg, lemon juice, flour, and sugar until evenly coated.
In a separate bowl, whisk together the flour, oats, brown sugar, and cinnamon. Pour in the melted butter and mix until thick crumble clusters form.
Assemble and Bake
Spread the spiced apple mixture evenly over the pre-baked shortbread crust. Sprinkle the crumble topping generously over the apples.
Bake at 180°C (350°F) for about 40 minutes until the apples are tender and the oat topping is golden brown and crisp.
Leave the bars in the pan to cool at room temperature for at least 1–2 hours. For the cleanest cuts, chill in the fridge for 30 minutes to firm up the crust.
Lift the cooled block out of the pan using the parchment overhang. Use a large, sharp knife to slice into 16 even squares, wiping the blade clean between cuts. Drizzle with caramel right before serving!
Expert Tips
- Always Pre Bake the Crust: Do not skip baking the shortbread crust first. Pre baking creates a barrier that keeps the bottom firm and prevents soggy centers.
- Choose Firm Tart Apples: Opt for firm apples like Granny Smith or Honeycrisp. Their natural acidity balances the sweet caramel sauce and brown sugar crumble.
- Slice Apples to Medium Thickness: Avoid slicing the apples too thin. Medium slices retain a tender bite and prevent the filling from turning into mush while baking.
- Cool Completely Before Slicing: Be patient and let the pan cool for at least an hour. This sets the shortbread and caramelized juices so the bars cut into clean, sturdy squares.
- Drizzle Caramel Last: Add the caramel sauce right before serving so it stays glossy on top without soaking into the oat layer.
FAQ'S & Troubleshooting
Granny Smith apples are the top choice because their tart flavor contrasts nicely with the sweet crumble and caramel. Honeycrisp or Pink Lady apples also work well if you prefer a sweeter profile.
Yes. If you are short on time, you can swap the fresh spiced apple layer for store bought or homemade canned apple pie filling.
If your oat topping is browning too quickly before the apples are fully tender, loosely tent a sheet of aluminum foil over the top of the baking pan for the last 10 minutes of baking.
Storing
Keep cooled bars in an airtight container at room temperature for up to 3 days, or refrigerate for up to 5 days.
Freezing
Cool the baked bars completely, then chill in the fridge for 4 hours to firm up.
Slice into individual squares, wrap tightly in plastic wrap, and store in a freezer-safe bag for up to 2 months. Thaw in the fridge overnight before serving.
Substitutions and Variations
Pear Crisp Twist: Swap the fresh apples 1:1 with firm, ripe pears for a delicious seasonal variation.
Gluten Free: Swap the all purpose flour 1:1 with a gluten free measure for measure baking flour, and ensure your rolled oats are certified gluten free.
Vegan and Dairy Free: Replace the unsalted butter with plant based butter sticks for both the crust and crumble.
Added Crunch: Fold chopped pecans, walnuts, or sliced almonds into the crumble mixture before baking.
Serving Tips
Vanilla Ice Cream: Serve a warm bar alongside a large scoop of vanilla bean ice cream.
Whipped Cream: Top each square with a dollop of fresh homemade whipped cream.
Pan Size Variations
- 9 Inch Round or Springform Pan: Use the exact same ingredient amounts. Pre-bake the crust for 15 to 20 minutes, then bake the assembled bars for 35 to 40 minutes.
- 9 by 9 Inch Square Pan: Use the same ingredient amounts. Bars will be slightly thinner. Pre-bake the crust for 12 to 15 minutes, then bake the assembled bars for 30 to 35 minutes.
- 9 by 13 Inch Rectangular Pan: Multiply all ingredients by 1.5. Pre-bake the crust for 15 to 18 minutes, then bake the assembled bars for 40 to 45 minutes.
Equipment
- 8 by 8 inch Baking Pan: Metal pans deliver the crispest shortbread crust edges.
- Apple Corer and Slicer: Speeds up prepping and guarantees uniform apple slices.
- Mixing Bowls: For preparing the shortbread, fruit layer, and crumble separately.
- Parchment Paper: Allows you to lift the cooled bars straight out of the pan for clean cutting.
More fall recipes
Banana coffee cake- Cinnamon banana cake filled with a ribbon of brown sugar and topped with a crunchy streusel.
Butterscotch cake- Tender brown sugar cake layers stacked with homemade butterscotch sauce and butterscotch buttercream.
Pumpkin scones- Soft, bakery style pumpkin scones topped with a sweet fall glaze and chopped pecans.
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📖 Recipe
Best Apple Crisp Bars
Ingredients
Shortbread crust
- 1 ¼ cups Flour AP, plain
- ¼ cup Granulated sugar
- ½ teaspoon Kosher salt
- ½ cup Butter melted, unsalted
- 1 teaspoon Vanilla extract
Apple filling
- 4 cups Apples thinly sliced
- 1 teaspoon Cinnamon
- ¼ teaspoon Nutmeg
- 1 teaspoon Lemon juice
- 1 tablespoon Flour
- 4 tablespoon Granulated sugar
Crumble topping
- ½ cup Rolled oats
- ½ cup Flour AP, plain
- ⅓ cup Brown sugar
- ½ teaspoon Cinnamon
- 5 tablespoon Butter melted, unsalted
Instructions
Bake the Shortbread Crust
- Preheat your oven to 180°C (350°F) and line an 8 by 8-inch baking pan with parchment paper.
- In a medium bowl, combine the flour, sugar, and salt. Pour in the melted butter and vanilla extract, stirring with a spoon until a uniform dough forms.
- Press the dough evenly into the bottom of your prepared pan using your hands or the back of a spoon. Bake for 15 to 20 minutes until lightly golden. Set aside to cool slightly.
Prepare the Filling and Crumble
- Peel, core, and slice the apples into medium slices. In a large bowl, toss the apple slices with cinnamon, nutmeg, lemon juice, flour, and sugar until evenly coated.
- In a separate bowl, whisk together the flour, oats, brown sugar, and cinnamon. Pour in the melted butter and mix until thick crumble clusters form.
Assemble and Bake
- Spread the spiced apple mixture evenly over the pre-baked shortbread crust. Sprinkle the crumble topping generously over the apples.
- Bake at 180°C (350°F) for about 40 minutes until the apples are tender and the oat topping is golden brown and crisp.
- Leave the bars in the pan to cool at room temperature for at least 1–2 hours. For the cleanest cuts, chill in the fridge for 30 minutes to firm up the crust.
- Lift the cooled block out of the pan using the parchment overhang. Use a large, sharp knife to slice into 16 even squares, wiping the blade clean between cuts. Drizzle with caramel right before serving!
Notes
- Choosing Apples: Use firm, tart apples like Granny Smith or Honeycrisp. They hold their shape during baking and prevent the fruit layer from turning mushy or overly sweet.
- Pre-Baking the Crust: Do not skip pre-baking the shortbread crust for 15–20 minutes. Pre-baking creates a crisp barrier that prevents the apple juices from making the bottom soggy.
- Apple Slice Thickness: Slice your peeled apples to a medium thickness (about ⅛ to ¼-inch thick). If cut too thin, the apples will break down into applesauce; if cut too thick, they won't soften completely in 40 minutes.
- Measuring Flour: Weigh your flour using a digital kitchen scale for exact accuracy. If using measuring cups, fluff the flour with a spoon, scoop loosely into the cup, and sweep off the excess with a flat edge. Packing the flour will result in a dry, crumbling crust.
- Cooling for Clean Slices: Let the bars cool completely in the pan for at least 1 to 2 hours, then chill in the fridge for 30 minutes before cutting. This firms up the shortbread base so you can slice them into clean, sturdy squares without crumbling.
- Caramel Drizzle: Add the caramel sauce right before serving so it stays glossy on top of the crisp oat layer without soaking through into the bars.
SJ says
This recipe is superb! I have shared it with friends. After reading the recipe again, just came across an auto correct mistake, homoginist is supposed to be homogenous I believe.
Moxie says
Where in the recipe are there instructions to make the caramel sauce, store-bought is disgusting and if you’re taking the time to make this recipe that sounds delicious, don’t ruin it by store bought caramel sauce!
RichandDelish says
Hi! Here is the link for my caramel sauce recipe: https://richanddelish.com/salted-caramel-sauce/