Apple Cinnamon Crumble Bars

Featured in: Warm Bakes

Apple Cinnamon Crumble Bars offer a delicious combination of sweet apples and aromatic cinnamon layered over a tender oat crust, finished with a golden crispy topping. These bars provide satisfying texture with both softness and crunch in every bite. Ideal for snack, dessert, or sharing with friends, they capture the nostalgic flavors of classic baked sweets in a convenient bar form. Serve warm or cool, as a comforting treat for all occasions.

Updated on Wed, 15 Oct 2025 13:22:37 GMT
Golden brown Apple Cinnamon Crumble Bars, warm from the oven, topped with streusel. Save
Golden brown Apple Cinnamon Crumble Bars, warm from the oven, topped with streusel. | butterhollow.com

These apple cinnamon crumble bars are just the thing when you want a cozy dessert that is easy enough for weeknights but special enough for guests. They have layers of spiced apple filling nestled between buttery oat crumble with just the right amount of nostalgia. I make these every fall as soon as the orchard apples are ready and everyone in my house has come to expect a pan cooling on the counter.

My sister started asking for these to be her birthday cake every September. The recipe has followed me to every potluck and holiday table and always gets recipe requests.

Ingredients

  • Old-fashioned rolled oats: give the crumble lots of texture and chew I always look for organic oats with a fresh aroma
  • All-purpose flour: binds the crumble together and makes it sturdy Avoid bleached flour for a purer taste
  • Unsalted butter: creates the ultimate rich and tender crumb Use high-quality European butter if you can
  • Brown sugar: adds caramel flavor and soft moisture I prefer dark brown for deeper results
  • Fresh apples: make the filling sweet and juicy Crisp baking apples like Granny Smith or Honeycrisp work best
  • Cinnamon: infuses every bite with classic warm spice Always use fresh fragrant cinnamon and avoid any that smell dusty
  • Granulated sugar: sweetens the filling Taste your apples first and adjust sugar to your liking
  • Lemon juice: keeps apples bright and tart Squeeze fresh for best results
  • Cornstarch: thickens the filling Use this to avoid soggy bars and keep layers tidy

Instructions

Prepare the Crumble:
Combine oats flour brown sugar and a pinch of salt in a large mixing bowl Mix until well integrated Add cold cubed butter and use your fingertips to rub it in until the mixture forms moist clumps Resist the urge to overwork or the topping will lose its crumbly texture
Make the Apple Filling:
Peel core and slice apples into thin wedges Toss them in a separate bowl with granulated sugar cinnamon a dash of lemon juice and cornstarch Stir until the apples are fully coated and glossy
Press and Layer:
Pour two thirds of the crumb mixture into a lined baking pan Use your hands or the bottom of a measuring cup to firmly press into an even base Make sure to reach all corners for even baking
Add the Apple Layer:
Spread all of the cinnamon apples evenly over the base Make sure they are in a single layer for even cooking and every bite gets apple
Top and Bake:
Crumble the remaining oat mixture loosely over the apples creating big and little clusters Bake in a preheated oven at 350 degrees Fahrenheit for about forty five minutes until golden and bubbling
Cool and Slice:
Let the bars cool completely in the pan before slicing to help set the filling Run a knife around the edges then lift and cut into even bars
Homemade Apple Cinnamon Crumble Bars, a delicious, easy dessert with sweet apple filling. Save
Homemade Apple Cinnamon Crumble Bars, a delicious, easy dessert with sweet apple filling. | butterhollow.com

There is something magic about how brown sugar and apples bake into something so nostalgic It always brings me back to my grandparents farmhouse where the first batch was hurried to the kitchen table and cut before it had cooled

Storage Tips

Store leftovers in an airtight container at room temperature for up to three days For longer storage keep in the fridge for up to one week Bars may be microwaved briefly to restore that straight from the oven texture Just keep in mind that the crumble remains crispiest when not sealed with plastic for long stretches

Ingredient Substitutions

You can use whole wheat flour for a nuttier flavor or swap in coconut sugar for the brown sugar Pears work in a pinch if you run out of apples or try a mixed apple and pear filling Gluten free flour blends also work well Use vegan butter to keep them dairy free

Serving Suggestions

Serve them on their own for a snack or dessert Add a scoop of vanilla ice cream or a dollop of whipped cream for extra indulgence Try them with a warm mug of chai or a drizzle of caramel for something truly special

Cultural and Seasonal Context

Crumble bars are based on classic fruit crumble desserts enjoyed across Europe and North America but in bar form they are portable and perfect for lunchboxes or picnics Fall apple harvest is the traditional time for these but they are just as welcome at spring potlucks

Close-up of moist Apple Cinnamon Crumble Bars, perfect for fall baking and sharing. Save
Close-up of moist Apple Cinnamon Crumble Bars, perfect for fall baking and sharing. | butterhollow.com

Let the bars cool fully for neat slices then share with friends for instant smiles and requests for the recipe.

Apple Cinnamon Crumble Bars

Warm apples and cinnamon layered with buttery oat crumble for comforting homemade bars.

Prep duration
20 min
Heat duration
40 min
Complete duration
60 min
Created by Ella Thompson

Type Warm Bakes

Skill level Medium

Heritage American

Output 12 Portions

Eating preferences Meat-free

What you'll need

Base Layer

01 2 cups all-purpose flour
02 1/2 cup granulated sugar
03 1/2 teaspoon baking powder
04 1/4 teaspoon salt
05 1/2 cup unsalted butter, cold and cubed
06 1 large egg, lightly beaten

Apple Filling

01 3 medium apples, peeled, cored, and diced
02 1/4 cup granulated sugar
03 1 teaspoon ground cinnamon
04 1 tablespoon lemon juice
05 1 tablespoon all-purpose flour

Crumble Topping

01 3/4 cup old-fashioned oats
02 1/2 cup all-purpose flour
03 1/3 cup brown sugar, packed
04 1/4 teaspoon ground cinnamon
05 1/4 teaspoon salt
06 1/2 cup unsalted butter, melted

Method

Phase 01

Preheat Oven: Set oven to 350°F (177°C). Line a 9x9-inch baking pan with parchment paper, allowing for overhang.

Phase 02

Prepare Base Layer: Combine flour, granulated sugar, baking powder, and salt in a mixing bowl. Cut in cold butter until mixture resembles coarse crumbs. Add egg and blend until just incorporated. Press evenly into prepared pan.

Phase 03

Compose Apple Filling: Toss diced apples with granulated sugar, cinnamon, lemon juice, and flour until evenly coated. Spread the mixture over the base layer.

Phase 04

Make Crumble Topping: Stir together oats, flour, brown sugar, cinnamon, and salt. Add melted butter, mixing until large clumps form. Distribute evenly over apple filling.

Phase 05

Bake: Transfer pan to center rack and bake for 38–42 minutes, or until topping is golden and apples are tender.

Phase 06

Cool and Serve: Allow bars to cool completely in pan before lifting and slicing. Serve at room temperature or gently warmed.

Kitchen tools needed

  • Mixing bowls
  • 9x9-inch baking pan
  • Parchment paper
  • Pastry cutter or fork
  • Spatula

Allergy details

Always review individual ingredients for potential allergens and seek professional medical guidance if uncertain.
  • Contains wheat, eggs, and dairy.

Nutrient breakdown per portion

Numbers shown are estimates only - consult healthcare providers for specific advice.
  • Energy: 228
  • Fats: 8 g
  • Carbohydrates: 36 g
  • Proteins: 3 g