How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Microwave Blueberry Crumble?

You need 10 ingredients. The key ingredients include: 3 cups fresh blueberries (or frozen if desired), 3 tablespoons sugar, 1 tablespoon cornstarch, 1/3 cup old fashioned oats, and more.

Is Microwave Blueberry Crumble suitable as baking & desserts?

Yes, Microwave Blueberry Crumble falls under the Baking & Desserts category and is a great choice for this type of meal.

How do I store leftover Microwave Blueberry Crumble?

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

Microwave Blueberry Crumble Recipe

Name: Microwave Blueberry Crumble
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 3 cups fresh blueberries (or frozen if desired); 3 tablespoons sugar; 1 tablespoon cornstarch; 1/3 cup old fashioned oats; 1/3 cup packed brown sugar; 3 tablespoons flour; 2 tablespoons chopped almonds; 1/4 - 1/2 teaspoon cinnamon; 3 tablespoons cold butter (no exceptions); vanilla ice cream (optional)

Bake this irresistible Microwave Blueberry Crumble at home. Made with fresh blueberries, sugar, cornstarch and oats. Easy step-by-step instructions incl…

This Microwave Blueberry Crumble relies on simple, everyday ingredients such as sugar, cornstarch, old fashioned oats and packed brown sugar. It comes together quickly and makes 4 servings, at about 395 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Microwave Blueberry Crumble delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.

Updated Jun 30, 2026

Serves 4 Baking & Desserts

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.
Leave out the nuts to make it nut-free, or swap in seeds for a similar crunch.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

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Microwave Blueberry Crumble

Tips for the best results

Variations & substitutions

My Personal Notes

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