Mixed Berry Oatmeal Bars

Mixed berry bar with oat crumble topping on parchment.

4.91 from 21 votes

Mixed Berry Oatmeal Bars

These Mixed Berry Oat Bars are a perfect crumbly treat. Filled with fresh berries, oats, a hint of cinnamon and only about 10 minutes to prep. The perfect dessert or even brunch treat everyone will love!

Prep Time15

Total Time1

Course: Dessert

Cuisine: American

Servings:

Calories: 334kcal

Author: Lorie Yarro

Ingredients

1 ½ c quick oats
1 ½ c flour
1 c brown sugar, lightly packed
1 c butter, melted
1 ½ teaspoon cinnamon
1 teaspoon vanilla extract
½ teaspoon baking powder
½ teaspoon sea salt
2 ½ c mixed berries, fresh or frozen (thawed if frozen)
Juice of ½ lemon
1 teaspoon corn starch
3 T sugar (more if berries are super tart)

Instructions

Preheat oven to 350°F.
In a bowl, mix together sugar, lemon juice, berries and corn starch and mix to combine. Set aside.
In a separate bowl, combine oats, flour, brown sugar, cinnamon, sea salt, and baking powder and whisk together.
Add in melted butter and vanilla and stir to combine. Mixture will be somewhat crumbly, and that is ok.
In an 8x8 in. pan, lined with parchment, press ⅔ of the oat mixture firmly into the pan. Add the berry mixture on top to cover evenly.
Sprinkle over the rest of the oat mixture to cover the berries.
Place in the oven and bake for 28-32 minutes or until berries are bubbling and oats on the top are browned.
Allow to cool completely before cutting.
Enjoy!

Notes

Adjust the berry sweetness as desired: If your berries are a bit tart, you may want to add another tablespoon or so of sugar. If it's peak berry season and they are nice and sweet, you may want to half the amount of sugar.
For easier and cleaner cut bars, refrigerate these berry oat bars for several hours before cutting. This makes for much less of a mess! Run the knife under hot water before slicing and then wipe clean between each cut and rinse again.
If you aren't planning to eat them as bars, no need to refrigerate to set. These can be eaten with a fork for sure and if you are not concerned about them holding together well, then for sure, dig in whenever you are ready!
Serving suggestions: Eat chilled or warm them up before serving. Topped with vanilla ice cream is always a win! You can also top with a big dollop of whipped cream on top. Break the bars into pieces and serve over yogurt or make parfaits.

Nutrition