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    Home » Recipes » Vegetarian

    Easy Microwave Berry Crumble

    Published: Jan 31, 2022 · Modified: Apr 21, 2026 by Nicole Addison · This post may contain affiliate links · 10 Comments

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    A fruity microwave berry crumble in less than 5 minutes? Yes please. The best part? You won't even have to share.

    We all know my love for single serving recipes burns brightly. However not matter how many microwave recipes I make, the microwave crumble will always have a special place in my heart. It's just SO easy and so customizable. Plus it has the added bonus of requiring only two dishes... it's the perfect lazy girl (or guy) sweet treat!

    Microwave berry crumble

    My microwave crumble obsession first began with my famous microwave apple crumble. Since then, I've realized that it can be made with pretty much any fruit. So since it's the season of love (and we had a stash of frozen berries) I knew it was time to make a berry version. This microwave berry crumble is a hit and quite possibly my favourite version I've made. The ingredient list is also packed with whole grains, fibre, and natural sweeteners to help make this a crumble you can have all day long.

    What Ingredients do I Need for this Microwave Berry Crumble?

    Berries- I've used both fresh and frozen berries. I personally find frozen work a tiny bit better because they soften faster. I like using a combination of raspberries and blueberries but any berries will work. If you are using a bigger berry such as strawberry, don't forget to slice them up!

    Oats- Minute oats, quick oats or rolled oats all work in this recipe so choose whatever you use most often (may favourite are these).

    Cinnamon & Ginger- The secret to a good crumble is in the spices. I love the addition of ginger to this but it is also 100% okay if you would like to omit it.

    Cornstarch- Using a little bit of cornstarch helps thicken up the berry filling a little bit more. You can also substitute it for arrowroot powder if you aren't able to use cornstarch.

    Walnuts- These are 100% optional. I add them for a little extra crunch when I'm using frozen berries but they aren't necessary.

    Maple Syrup- Maple syrup adds some natural sweetness to this berry crumble. I personally love the subtle maple flavour it brings to this and have not tried substituting with any other liquid sweeter. If you decide to try using honey etc. let me know how it goes in the comments! Ps. you can also try a sugar-free maple syrup like this one!

    Coconut Oil- I use coconut oil for a lot of my baking for the sole reason that I love the subtle coconut flavour it brings. However if you don't have coconut oil on hand feel free to substitute it with butter!

    Oat Flour- I love using oat flour in my recipes for a little extra fibre and whole grains. You can buy pre-made oat flour (like this one or you can just blend an equal amount of oats in a blender or food processor until smooth ( this is what I do). Note that I have never tested this recipe with any other type of flour, it *should* work but I can't 100% say.

    close up of microwave berry crumble

    Can I use an Oven?

    This is a question I've gotten asked a lot on many of my single serve microwave recipes. Some people just don't have a microwave, or they don't feel like using it or they'd just rather put it in the oven-and that's totally okay! I personally like using the microwave because it's just so quick and convenient. There's no need to wait for the oven to heat up, and it takes only 2-3 minutes to cook. So I'm all about getting my berry crumble as quickly as possible. However if you're someone that appreciates the slower things in life you can bake this in the oven at 350 degrees F for about 25 minutes or until the crumble begins to brown.

    I love seeing you make my recipes! Don't forget to tag me on Instagram- @nourishedbynic or leave a comment on this recipe below letting me know how it turned out!

    📖 Recipe

    Microwave berry crumble
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    4.63 from 8 votes

    Microwave Berry Crumble

    Prep Time5 minutes mins
    Cook Time4 minutes mins
    Total Time9 minutes mins
    Course: Breakfast, Dessert, Snacks
    Keyword: single serve
    Servings: 1 serving

    Ingredients 

    Topping

    • 1 tablespoon peanut butter softened * see below for substitute
    • ½ tablespoon maple syrup
    • ⅓ cup oats quick, minute or rolled
    • 2 tablespoon vanilla protein powder (or flour of choice)
    • 1 teaspoon cinnamon
    • ½ teaspoon water

    Berry Filling

    • 1 cup frozen berries
    • 1 tablespoon chia seeds *see below for substitute
    • ½ tbsp maple syrup, honey or sugar optional (for sweetness)

    Instructions

    • In a small bowl mix together topping ingredients until a crumble forms, set aside.
    • In a separate small microwave safe dish add berries. Microwave for 1 minute to soften the berries.
    • After 1 minute, add the chia seeds and stir. Microwave once again for 1 minute to allow the chia seeds to start to thicken.
    • Carefully spread the topping over the berry filling. Microwave for about 2 minutes until top is golden brown and the filling is bubbling (start watching carefully at 1 min 30 seconds as every microwave is different).
    • Carefully remove from microwave (it will be hot!) and top with ice cream, whipped cream or yogurt!

    Notes

    • recipe updated April 2026
    Peanut butter- Ensure your peanut butter is runny (I recommend using natural peanut butter). Peanut butter can be replaced with coconut oil, or butter.
    Protein powder- Protein powder can be replaced with oat flour or all purpose flour! If you do this- I recommend adding additional maple syrup or brown sugar into the topping for a bit of added sweetness! 
    Chia seeds- In the original recipe I used 1 teaspoon of cornstarch to thicken the berry filling. If you do not wish to use chia seeds, cornstarch can absolutley still be used. The chia seeds just add extra fiber while making this recipe suitable for gluten free folks!
    *I have included an estimation of the nutrition information for this recipe below. However, always remember a recipe is so much more than just nutritional content and these numbers do not need to dictate your food choices. Please don't forget that both your body and soul need nourishment! The owner of this website is not liable for this estimation.

    Nutrition

    Serving: 1crumble | Calories: 475kcal | Carbohydrates: 60g | Protein: 28g | Fat: 16g | Saturated Fat: 3g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 5g | Trans Fat: 0.02g | Cholesterol: 57mg | Sodium: 147mg | Potassium: 467mg | Fiber: 13g | Sugar: 23g | Vitamin A: 84IU | Vitamin C: 4mg | Calcium: 285mg | Iron: 3mg
    Did you know....rating and sharing recipes is one of the best ways you can support your favourite food bloggers? If you make this recipe, I would love if you clicked the stars below to leave a rating and/or sharing a photo on social media by tagging @nourishedbynic or using the hashtag #nourishedbynic!

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    Comments

    1. Leandra Scaccia says

      June 01, 2024 at 2:15 am

      5 stars
      This was such a yummy & easy dessert to make!! Made one for me & my fiance and it was a huge hit. This one is definitely on the list to be remade!!

      Reply
    2. Bella says

      May 31, 2024 at 7:49 pm

      5 stars
      I was looking for an easy dessert with items I had at home and knew to look on your Instagram page! This dessert is not only easy, but it’s easily customizable. It was perfect with whipped cream, but I definitely want to try with ice cream next!

      Reply
    3. A says

      April 29, 2023 at 2:05 pm

      5 stars
      Love this! So quick and very easy and a great way to make one or two servings without having to heat up the oven.

      Reply
    4. Kristen says

      April 24, 2023 at 4:57 pm

      4 stars
      I appreciate this recipe because its super quick and I can eat it on a weekday. I didn't have walnuts so I used pecans instead and loved it. The only downfall I ran into was the topping was powdery for me and never crisped up. Might try with melted butter next time instead of coconut oil.

      #nourishedspring

      Reply
      • Nicole Addison says

        April 24, 2023 at 6:31 pm

        Hi Kristen,

        So sorry to hear your topping didn't get crispy! I find sometimes microwave cook times may also vary so I would recommend maybe cooking for longer as well (try 15 second increments)!

        Nicole

        Reply
    5. Bethany says

      December 31, 2022 at 4:02 am

      5 stars
      Super quick and easy! Tried using different fruits and it satisfied my sweet tooth each time. #nourishedholiday

      Reply
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    Nicole Addison, RD

    Hi I'm Nicole!

    I’m a Registered Dietitian, recipe developer and content creator on a mission to help individuals rediscover the joys of cooking with easy, accessible, healthy recipes.

    On my page you'll find yummy recipes, wellness tips, and even some of my favourite travel and lifestyle recommendations!

    More about me →

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