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Easy Oatmeal Crumble Topping Recipe For A Blackberry Dessert

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 easy oatmeal crumble topping recipe for a blackberry dessert in a baking dish with a green towel

This delicious and easy oatmeal crumble topping recipe for a blackberry dessert is probably my favorite fruit dessert that exists. The topping is a mixture of flour, rolled oats, brown sugar, cardamom, cinnamon, and salt with cold butter cut in. It is the perfect combination of crunchy and sweet that tastes so good in a variety of ways. It’s the best and easiest fruit crumble/crisp recipe you’ll ever need and one of my favorite desserts. 

As far as traditional and classic desserts go, this blackberry crumble is a show-stopper. It only takes minutes to make the topping and a half hour to bake. Blackberry oatmeal crumble is the perfect way to bake fresh fruit without any fuss – add them to a baking pan, sprinkle with topping, and bake. Easy and fast desserts are great things.

What Is The Best Way To Use A Crumble

muffin on a purple napkin with oat crumble topping.

Easy oat crumble topping can be eaten plain (like a sugared-up granola) or as a crisp topping on these suggestions:

  • Blackberry crumble
  • Easy apple crisp (sweet or tart apples)
  • On a scoop of vanilla ice cream 
  • On top of a galette 
  • Top of an apple pie or any apple desserts
  • Atop quick breads
  • As a muffin topping (a personal favorite)
  • Sprinkle on peach crisp

Ingredients For Easy Oatmeal Crumble Topping Recipe For A Blackberry Dessert

Ingredients to make  easy oatmeal crumble topping recipe for a blackberry dessert on a plaid fabric surface

Here are the simple ingredients to make a crumb topping for any dessert or fruit crisp. Crumble recipes come together quickly for an amazing dessert. 

  • 1 cup of all-purpose flour
  • 3/4 cup old-fashioned rolled oats
  • 1/2 cup brown sugar
  • 1/2 teaspoon cinnamon
  • 1/2 teaspoon cardamom
  • 1/4 teaspoon salt
  • 8 tablespoons cold unsalted butter
  • 12 ounces blackberries

Variations Of Ingredients For Crumble

Have some fun with different flavors – try your favorite spice! Here are some suggestions:

  • Pumpkin pie spice
  • Nutmeg
  • Allspice
  • Cloves
  • Orange zest
  • Lemon zest
  • A small dash of almond extract

Instructions On How To Make Easy Oatmeal Crumble Topping Recipe For A Blackberry Dessert

Here are the easy step-by-step ingredients for this easy recipe for the best dessert crumble topping:

1. Mix the flour, oats, sugar, cinnamon, cardamom, and salt in a medium bowl. 

Dry ingredients and cubed butter to make  easy oatmeal crumble topping recipe for a blackberry dessert.

2. Dice the butter into small pieces and add it to the dry ingredients. Cut it in with a pastry cutter or two forks until it is lumpy but incorporated. 

Collage of 4 photos showing how to cut butter into dry ingredients to make  easy oatmeal crumble topping recipe for a blackberry dessert

3. Spread out the washed blackberries in the bottom of an 8×8 ceramic or glass pan. 

blackberries in a corning ware dish.

4. Sprinkle half of the topping over the berries and bake in a 400-degree oven for 30 minutes until the fruit is bubbly and the topping is golden brown. 

collage showing topping for easy oatmeal topping recipe for a blackberry dessert.

5. Serve warm with vanilla ice cream or pour over a dash of heavy cream. Enjoy!

blackberry crumble with ice cream on a pretty plate with a fork

Other baking information:

To eat the oatmeal crumble topping plain bake it as follows:

1. Spread the topping on a baking sheet lined with aluminum foil or parchment paper.

2. Bake at 350 degrees 10 minutes until the topping is golden brown.

3. Set the baking tray on a wire rack to cool to room temperature. 

4. Store in the refrigerator or freezer. 

Notes:

-Freeze the other half of the topping for other desserts, crisps, and pies. 

-Old-fashioned rolled oats hold their texture better than quick oats for an oatmeal topping. 

– If using salted butter, omit or lower the salt amount.

-Coconut oil or vegan butter can be substituted, but you might get different results. 

-Dark brown sugar is great too!

-You can use a food processor instead of a pastry blender to cut in the butter but do not overmix.

How To Store Crumble

oat crumble topping in a Ziploc bag for the freezer to make easy oatmeal crumble topping recipe for a blackberry dessert at a later date.

Store any leftover crumble in an airtight container in the refrigerator for 3-4 days. For the best results freeze the crumble topping for up to six months and use it whenever you like. The best thing is having this on hand to whip up a variety of desserts quickly. 

Company is coming and you have a handful of pink lady apples. Slice the apples into a pan and sprinkle some frozen crumble topping on top. Bake at 400 degrees and serve. (Baking time will vary depending on the pan, fruit, and amount you are making)

How To Serve Easy Oatmeal Crumble Topping Recipe For A Blackberry Dessert

Piece of easy oatmeal crumble topping recipe for a blackberry dessert with ice cream on a pretty plate.

Serve this lovely homemade blackberry crumble warm and top with vanilla ice cream. Let the cream melt into the perfectly cooked berries. Take a bite and close your eyes. Taste every flavor and every texture, then smile because you know you want to. Fruit desserts can be overlooked but this one is a must-make recipe!

This beautiful and easy dessert is perfect for brunch, lunch, snack, after dinner, on holiday tables, summer picnics, or during the week. 

Serve this amazing topping or dessert with:

or

Wrapping Up Easy Oatmeal Crumble Topping Recipe For A Blackberry Dessert

Forkful of easy oatmeal crumble topping recipe for a blackberry dessert up close.

We love easy fruit crumbles. Choose fruit in season – blackberries, raspberries, strawberries, blueberries, apples, pears and peaches. These fruits bake up wonderfully with an old-fashioned oat crumble topping. Just ask my husband – he ate the whole pan! And that’s why I love to cook and bake. To make others smile through food. 

​Make this recipe today.

Cheers, 

Sarah

Recipe Card For Easy Oatmeal Crumble Topping Recipe For A Blackberry Dessert

5 from 1 vote

Easy Oatmeal Crumble Topping Recipe For A Blackberry Dessert

This delicious and easy oatmeal crumble topping recipe for a blackberry dessert is probably my favorite fruit dessert that exists. The topping is a mixture of flour, rolled oats, brown sugar, cardamom, cinnamon, and salt with cold butter cut in. It is the perfect combination of crunchy and sweet that tastes so good in a variety of ways. It's the best and easiest fruit crumble/crisp recipe you'll ever need and one of my favorite desserts. 
Print Recipe
Prep Time:8 minutes
Cook Time:30 minutes
Total Time:38 minutes

Ingredients

  • 1 cup of all-purpose flour
  • 3/4 cup old-fashioned rolled oats
  • 1/2 cup brown sugar
  • 1/2 teaspoon cinnamon
  • 1/2 teaspoon cardamom
  • 1/4 teaspoon salt
  • 8 tablespoons cold unsalted butter
  • 12 ounces blackberries

Instructions

  • Here are the easy step-by-step ingredients for this easy recipe for the best dessert crumble topping:
  • Mix the flour, oats, sugar, cinnamon, cardamom, and salt in a medium bowl.
  • Dice the butter into small pieces and add it to the dry ingredients. Cut it in with a pastry cutter or two forks until it is lumpy but incorporated.
  • Spread out the washed blackberries in the bottom of an 8×8 ceramic or glass pan.
  • Sprinkle half of the topping over the berries and bake in a 400-degree oven for 30 minutes until the fruit is bubbly and the topping is golden brown.
  • Serve warm with vanilla ice cream or pour over a dash of heavy cream. Enjoy!
  • Other baking information:
  • To eat the oatmeal crumble topping plain bake it as follows:
  • Spread the topping on a baking sheet lined with aluminum foil or parchment paper.
  • Bake at 350 degrees 10 minutes until the topping is golden brown.
  • Set the baking tray on a wire rack to cool to room temperature.
  • Store in the refrigerator or freezer.

Notes

-Freeze the other half of the topping for other desserts, crisps, and pies. 
-Old-fashioned rolled oats hold their texture better than quick oats for an oatmeal topping. 
– If using salted butter, omit or lower the salt amount.
-Coconut oil or vegan butter can be substituted, but you might get different results. 
-Dark brown sugar is great too!
-You can use a food processor instead of a pastry blender to cut in the butter but do not overmix.
Author: Sarah

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