5-Ingredient Blueberry Oat Crumble

Make the most of blueberry season with this crisp, delicious and easy Blueberry Oat Crumble. Its not blueberry season yet? Frozen blueberries will pair perfectly with the crisp oats!

This Blueberry Oat Crumble is super easy to prepare, then the rest of the time is yours! Once it’s baked to your liking, enjoy the fruits (pun intended) of your (barely) labor!

Helpful Tools For The Cook:

  • 8×8 inch baking dish or 9-inch pie dish
  • large bowl
  • measuring cups

Helpful Tips:

I have a time-saving shortcut I’d like to share that (bonus) also saves a dish or two!When a recipe calls for melted butter and/or greased baking dish, I melt the butter in the oven while it’s preheating.

Set the oven to your desired temperature. Place the solid butter in the baking pan or pie dish you’ll be baking the food in. Place the baking pan or pie dish in the oven and set a timer for about 5 – 10 minutes. This way you won’t forget about it and end up with burnt butter. Start your timer at 5 minutes and increase as needed until you get the hang of it.

Meanwhile, do some prep work. Once butter is melted, pour it out of the dish and incorporate it into the rest of your ingredients. A small amount of left-behind butter will coat the dish, eliminating the need to grease.

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5-Ingredient Blueberry Oat Crumble

A scoop of vanilla ice cream, or a dollop of whipped cream, or a spoonful of frozen yogurt completes this dessert.

🕔 1 hour
🥘 1 dish
🌿 5 ingredients
🍴 8 servings


1/2 cup (1 stick) butter
1/2 cup white whole wheat flour
1 cup raw sugar
1 1/2 cup old fashioned or quick oats
2 dry pint (about 3 cups) blueberries
1 teaspoon cinnamon (optional)


PREHEAT oven to 350°F. MELT butter in a 9-inch pie dish or 8×8-inch baking dish while oven is preheating.

COMBINE flour, sugar, oats and cinnamon (if using) in a large bowl, breaking up lumps with a fork or between your fingers. ADD melted butter until well combined.

SPREAD half of crumble mixture in the pie dish, gently patting the mixture down. SPREAD fruits over the bottom crumble. SPREAD remaining crumble over the fruits, gently patting the mixture down.

BAKE uncovered, 50 minutes.

Roxanne, thegoodlf.com

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