Microwave Blueberry Crisp


Microwave blueberry crisp is the perfect dessert for a sweet craving. In less than 10 minutes you can have dessert ready to go! You don’t have to take my word for it. Give the recipe a try and let me know what you think! Microwave Blueberry Crisp might just become one of your favorite snacks. It’s got all the qualities you want in sweet treat, but it’s super quick and easy to make. It’s also a healthier recipe compared to most desserts.

Microwave Blueberry Crisp

Craving something sweet? This Single-Serve Microwave Blueberry Crisp is ready in less than 5 minutesThis is a versatile recipe that you can double for an extra serving, or use other fruits instead of blueberries. So delicious, fast, easy!

microwave blueberry crisp in a white bowl with checkered backgroud

Sometimes, you’re just craving something sweet. But you don’t have time to bake a whole pie or make a batch of cookies. You just need a single serving of deliciousness to satisfy that sweet tooth.

Thank goodness for the microwave! With the almighty microwave, you can whip up this microwave blueberry crisp in less than 5 minutes!

Tools and equipment for this recipe

For this recipe, you just need:

  • a microwave
  • microwave-safe bowl
  • mixing bowl
  • spoon

Gather your ingredients


You’ll need the same ingredients for a single serving of blueberry crisp as you would for a larger recipe, but in smaller amounts. See the recipe card at the bottom of the post for exact measurements.

  • blueberries (fresh or frozen)
  • cornstarch
  • old fashioned oats
  • light brown sugar
  • all-purpose flour
  • ground cinnamon
  • unsalted butter

How to make blueberry crisp in the microwave

microwave blueberry crisp

Making this dessert in the microwave is SUPER easy. The full instructions with exact measurements are in the recipe card at the bottom of this post. But here’s an overview:

Step 1 – In a small microwave-safe bowl, mix the blueberries with cornstarch. Microwave for two minutes. Watch it toward the end to make sure the blueberries don’t “pop” – if they start to, it’s time to take the bowl out of the microwave.

Step 2 – In a separate bowl, mix together the remaining ingredients. Then place on top of the blueberries.

Step 3 – Microwave for one minute. Stir, then microwave for one more minute. Allow the bowl to sit at room temperature for a minute before diving in and devouring this delicious, fast and easy dessert!

What’s so great about blueberries?


What are the health benefits of blueberries?

Blueberries are known as one of the “superfoods” that pack a wealth of health benefits in each serving. They are packed with antioxidants and phytoflavinoids, Vitamin C, and potassium. Blueberries may help lower your risk of heart disease can cancer. They are also anti-inflammatory, and may help lower blood pressure.

How many blueberries should you eat a day?

According to Science Daily: “Eating a cup of blueberries a day reduces risk factors for cardiovascular disease… Eating 150g of blueberries daily reduces the risk of cardiovascular disease by up to 15 percent.”

Are frozen or fresh blueberries better?

Both are equally nutritious and delicious! Frozen berries are usually flash frozen immediately after they are picked at peak ripeness. Studies have shown that there is no loss of antioxidants in blueberries that have been frozen for up to five months (source: science daily).

Recipe variations

Try this same recipe using apples, pears, peaches, blackberries, raspberries, strawberries, or marionberries. A triple berry crisp would be amazing!

Microwave Blueberry Crisp

microwave blueberry crisp

Microwave Blueberry Crisp is a great way to wrap up late summer. Or bring memories of warmer days in the middle of winter. So easy to prepare that the kids can help out too! Enjoy hot or cold, with whipped cream, ice cream or all alone.

Blueberries, Native To Canada

In the 150th Canadian Celebration Cookbook, discover trivia about berries found all across Canada. Blueberries is one such berry.

Two well known versions are Wild Blueberries and the commercially recognized High Bush Blueberries.

Wild Blueberries are small, but very flavor intensive. These grow on low bushes close to the ground. Mechanical harvesting, hand raking is done, however, picking by hand is best. An acre of low bush blueberries can give you about 4,000 lbs (over 1,800 kg) of berries.

The other is the High Bush Blueberry which grow on taller standing bushes. These berries are commonly seen in grocery stores. They are bigger, plumper, and what one might say, fleshier. A great way to bring some free food in your yard is to plant a few bushes. A mature plant will give you 2.5 to 3.5 kg (5.5 to 7.7 lbs) of berries a season.

Consider planting High Bush Blueberry bushes, even in the suburbs. This plant makes a great hedge bush, offering:

  • flowers in spring,
  • berries in summer,
  • and red leaves in the fall.

All while addressing food security issues too. Empowering you towards a hope and a future.


Blueberries are one of the antioxidant foods. They are also high in potassium and Vitamin C.

Natives of Canada historically, and still today, use blueberries alot in their diets. A favorite dish, sautauthig, is made by mixing dried blueberries, dried, cracked corn and water.

Wild blueberries are highly regarded as a gift from the “Great Spirit”. One, is the fact that the blossom end of each blueberry forms a five points star. These stars remind native peoples of His Presence in their daily lives.

These star berries quickly relieved the hunger of children. Blueberries were also used for medicinal purposes. A strong aromatic tea from the root was used as a relaxant during childbirth. And blueberries were a common ingredient in Pemmican. Blueberries were easy to dry in the sun for year round use as well. Whether sun or smoke dried, blueberries could quickly be added to:

  • breads
  • soups
  • stews
  • and meat dishes.

Microwave Blueberry Crisp

Today, you are going to use fresh or frozen blueberries to create this quick and easy Microwave Blueberry Crisp. So easy, that your children can help you. You will have to remove the hot dish from the microwave and allow it to cool a bit before serving. But the children can assist will all the other steps of preparation.

First you need to gather your ingredients. Including:

  • fresh or frozen blueberries
  • brown sugar
  • quick cooking rolled oats
  • ground cinnamon
  • lemon juice
  • flour
  • softened margarine or butter
  • salt

Next you need a microwaveable casserole dish about 8 inches wide and a few inches deep. From there you will spread the berries on the bottom and sprinkle with the lemon juice.

In a medium sized bowl, you will combine all the other ingredients to make the crisp topping. Once combined, gently pat it in place over the blueberries.

Bake uncovered in the microwave for 12-20 minutes depending on your microwave. Frozen berries will take a few minute longer, such as the 20 minutes.

You will know it is ready when the blueberries are hot and starting to bubble up through the crisp topping.

Remove carefully with oven mitts and place to cool on a wire rack for a few minutes before serving. Great served hot or cold. Enjoy this dish year round, but especially in the height of blueberry season.

Blueberry Crumble Mug Pie

Blueberry Crumble in a Mug

Prep:4 mins

Cook:4 mins

Cool Time:1 mins

Total:9 mins

Serving:1 serving

Yield:1 mug

Nutrition Facts (per serving)

(Nutrition information is calculated using an ingredient database and should be considered an estimate.)SAVE RECIPE

Sometimes a sweet craving hits, but you don’t have the time or the energy to bake up an entire dessert. Plus, there can be too many leftovers after baking a treat fit for a crowd. The answer is a quick and easy dessert in a mug.

This blueberry crumble in a mug uses ingredients you likely already have on hand, as well as either fresh, seasonal berries or frozen fruit. The blueberries are warmed in a mug along with some brown sugar and a little cornstarch. This sweetens the berries and creates that delicious sauce we love in a warm berry crumble. The crumble oat topping becomes perfectly warm and bubbly in the microwave in a matter of minutes.

Microwave mug desserts are a great option for kids who are interested in baking since there’s no oven or stove involved. Plus, there are minimal dirty dishes, making for super easy clean-up. This single-serving dessert is great on its own or it can be topped with a dollop of whipped cream or even a small scoop of ice cream.


  • 1 cup frozen blueberries
  • 2 tablespoons brown sugar, divided
  • 1 teaspoon cornstarch
  • 3 tablespoons rolled oats
  • 1/4 teaspoon cinnamon
  • 1 teaspoon butter
  • 2 tablespoons whipped cream to serve

Steps to Make It


  1. Gather the ingredients.
  2. Place the frozen blueberries in a 12-ounce mug. (The blueberries should come up almost all the way to the top of the mug.)
  3. Sprinkle with 1 tablespoon of brown sugar and the cornstarch. Microwave on high for 30 seconds
  4. Stir gently so you don’t break up the berries, then microwave again in 30 second intervals until the sauce starts to thicken. Depending on the strength of your microwave, this could take up to 1 minute and 30 seconds.
  5. In a small bowl combine the rolled oats, remaining 1 tablespoon of brown sugar, and the cinnamon. Mash in the butter with a fork or your fingers to create the crumble topping.
  6. Sprinkle over the warmed blueberries and microwave for 1 minute and 30 seconds.
  7. Allow to stand for 1 minute before serving
  8. Top with a dollop of whipped cream and serve.


  • If you use fresh blueberries it may take less time for the filling to thicken up. Microwave in increments so you can check often.
  • Since microwave strengths and mug sizes vary, you might be concerned that the warm berry filling will bubble up and spill over while heating. For easy cleanup, simply place the mug on a microwave-safe plate.
  • Use care when taking the mug out of the microwave between steps and when ready to top and serve. Microwave strengths vary and the mug can become very hot. Use oven mitts or a thick kitchen towel to protect your hands.

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