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    Home » Dessert

    Oatmeal Strawberry Crumble Bars (gf, nut free)

    Published: May 15, 2022 · Modified: May 27, 2022 by Jacqui Wilson · This post may contain affiliate links

    Jump to Recipe
    stack of strawberry crumble bars.
    stack of strawberry crumble bars.

    Healthy and perfectly sweet strawberry crumble bars made with fresh strawberries and topped with an oat crumble. These easy gluten free and nut free strawberry bars are an easy to make treat with the sweet taste of strawberry in every bite!

    two strawberry crumble bars on white plate with cut strawberry.

    Why you'll love these strawberry crumb bars

    • Perfectly sweet - fresh summer strawberries have the perfect amount of sweetness for this delicious strawberry crumble recipe. You can also use frozen strawberries if you're in a pinch.
    • Healthy - these strawberries oatmeal bars are gluten-free, dairy-free and vegan. Heart healthy oats are loaded with fiber and protein, and the strawberries are full of vitamin C and antioxidants. This mixture of whole grain oats and fruit are the perfect combination for breakfast!
    • Versatile - easy to make with simple baking ingredients and fresh juicy strawberries. Perfect for spring and summer baking or strawberry picking season. These pie bars a super versatile and can be made with different types of fruit, fresh or frozen.

    If you like fruit snacks you should try my Fresh Ginger Apple Muffins with Crumble Topping, Best Paleo Banana Bread with Coconut Flour or my Mango Mint Salsa. These easy snacks are great for sharing or bringing to your next BBQ!

    Jump to:
    • Why you'll love these strawberry crumb bars
    • Noteworthy ingredients and substitutions
    • How to make strawberry crumble bars
    • Tips, tricks and variations
    • FAQs
    • Storage

    Noteworthy ingredients and substitutions

    strawberry crumble bars labelled ingredients.
    • Oat flour, old-fashioned rolled oats and shredded coconut - this combination makes a sturdy base with the perfect crust and crumble topping. Look for gluten-free oats. You can also substitute with quick cooking oats for a tighter crumb. If you don't have shredded coconut on hand then swap for more rolled oats.
    • Extra virgin coconut oil - the oil should be firm. You can refrigerate it but not for too long or it may be too hard to work with. I use room temperature coconut oil which works well if your kitchen's not too hot. Same goes if you substitute ghee or vegan butter. You want to be able to cut it in the dough to allow for pockets of fat to melt into a moist crumb while baking.
    • Oat milk - this adds a little moisture. You can substitute any plant-based milk you have on hand.
    • Fresh strawberries - berries have their own natural sweetness. If your strawberries are especially sweet then you don't need to add any maple syrup. Frozen strawberries work well too. They should be thawed and drained before starting.
    • Tapioca flour - this thicken the filling like jammy strawberry pie. You can substitute with arrowroot starch as well.
    • Pure maple syrup - an optional natural sweetener but works well if your strawberry lack sweetness. You could also swap for honey or coconut sugar.

    See recipe card at the bottom for all ingredients and quantities.

    How to make strawberry crumble bars

    1. Preheat oven to 350°F. Line an 8x8 aluminum pan with parchment paper and lightly grease with coconut oil to prevent sticking. I recommend a metal pan to help the bottom crust crisp up!
    process shot of mixing strawberry filling.
    1. Add quartered strawberries, tapioca flour and maple syrup. Mix and set aside.
    process shot of mixed crust and crumble.
    1. Mix oat flour, rolled oats, shredded coconut, coconut sugar, cinnamon, baking soda and sea salt. Add oat milk and vanilla and stir to combine. With a pastry cutter or fork, cut the coconut oil into crumble ingredients until dough is moist and crumbly.
    process shot of bottom crumble pressed into pan.
    1. Use about ⅔ of crumble and press into prepared pan.
    process shot of top crumble added.
    1. Spread the rest of the crumble mixture evenly on top to make a crumble topping.
    process shot of added strawberry layer.
    1. Layer with strawberry filling.

    process shot of bars cut into 25 squares.
    1. Bake for 30 minutes. Cool completely before slicing into bars.

    Tips, tricks and variations

    • Frozen strawberries - if using frozen berries, drain as they thaw to remove excess water.
    • Bottom crumble - be sure to press bottom crumble firmly into pan to keep it's shape and prevent it from crumbling when cut into bars.
    • Variations - use blueberries or mixed berries with this crumble bar recipe. Crush the berries a little before adding the tapioca starch so they distribute evenly over the bottom crumble.
    • Cool completely - make sure to cool in the pan completely before cutting. You can cool on a rack at room temperature or in the freezer.

    FAQs

    Can I use frozen strawberries in these strawberry pie bars?

    Yes, you can swap fresh strawberries for frozen strawberries. You will need to thaw and drain the berries first so the strawberry layer bakes evenly.

    Can I make my own oat flour?

    Making your own homemade oat flour is easy. Just toss them into your food processor or high speed blender and blend/pulse until a fine flour forms. It's cheaper than buying oat flour and can be used in other recipes like Healthy Cookie Dough Bites.

    oatmeal strawberry crumble bars stacked with flakes of oats in front.

    Storage

    Fridge: These strawberry oatmeal bars will keep well in the fridge in an airtight container for up to a week. Separate them with parchment paper so they don't stick together.

    Freezer: They can be kept frozen for up to 2 months in an airtight container separated with parchment paper. Thaw in the fridge or on the counter and enjoy!

    Did you make this recipe? Leave a review and ⭐️⭐️⭐️⭐️⭐️ rating below!

    Print
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    two strawberry crumble bars on white plate.

    Oat and Strawberry Crumble Bars (gf, nut free, vegan friendly)


    • Author: Jacqui Wilson
    • Total Time: 40 minutes
    • Yield: 25 squares 1x
    • Diet: Gluten Free
    Print Recipe
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    Description

    Healthy and perfectly sweet strawberry crumble bars made with fresh strawberries and topped with an oat crumble. These easy gluten free and nut free strawberry bars are an easy to make treat with the sweet taste of strawberry in every bite!


    Ingredients

    Scale

    Strawberry filling:

    • 12-ounces (340 grams) fresh strawberries, quartered (or frozen and thawed strawberries)
    • 1 tablespoon tapioca flour
    • 1 tablespoon pure maple syrup (optional)

    Crust and crumble:

    • 138 grams (1 ½ cups) oat flour (gluten free)
    • 68 grams (¾ cup) old-fashioned rolled oats (gluten free)
    • 13 grams (¼ cup) shredded coconut
    • 51 grams (⅓ cup) coconut sugar
    • ½ teaspoon ground cinnamon
    • ¼ teaspoon baking soda
    • ¼ teaspoon fine sea salt
    • 75 grams (⅓ cup) extra virgin coconut oil, firm (or ghee or vegan butter, firm)
    • 2 tablespoons oat milk (or favorite milk)
    • 1 teaspoon pure vanilla extract

    Instructions

    1. Preheat oven to 350°F. Line an 8x8 aluminum pan with parchment paper and lightly grease with coconut oil to prevent sticking. I recommend a metal pan to help the bottom crust crisp up!
    2. Strawberry filling: In a medium bowl, add the quartered strawberries, tapioca flour and pure maple syrup. Mix well and set aside.
    3. Crust and crumble: In a large bowl, mix together the oat flour, rolled oats, shredded coconut, coconut sugar, cinnamon, baking soda and sea salt. Add the oat milk and vanilla extract and stir to combine. With a pastry cutter or fork, cut the coconut oil into the dough ingredients until well distributed and dough is moist and crumbly. Use about ⅔ of crumble and press into prepared pan. 
    4. Layer with strawberry filling. Spread the rest of the crumble mixture evenly on top to make a crumble topping.
    5. Bake for 30 minutes as fruit bubbles and the the crust turns golden brown. Remove from oven and cool completely before slicing into bars. Refrigerate to speed the cooling process.

    Notes

    • You can swap fresh strawberries for frozen strawberries. Thaw and drain the berries first so the strawberry layer bakes evenly.
    • These strawberry oatmeal bars will keep well in the fridge in an airtight container for up to a week. Separate them with parchment paper so they don't stick together. Freeze for up to 2 months.
    • Be sure to press bottom crumble firmly into pan to keep its shape and prevent it from crumbling when cut into bars.

    Nutritional values are estimates only.

    • Prep Time: 10 min
    • Cook Time: 30 min
    • Category: dessert
    • Method: bake
    • Cuisine: American

    Nutrition

    • Serving Size: 1 square
    • Calories: 83
    • Sugar: 2.5 g
    • Sodium: 38.9 mg
    • Fat: 3.5 g
    • Saturated Fat: 2.6 g
    • Trans Fat: 0 g
    • Carbohydrates: 10.6 g
    • Fiber: 1.2 g
    • Protein: 1.6 g
    • Cholesterol: 0 mg

    Keywords: gluten-free oatmeal bars, nut free oatmeal bars, fresh strawberry, strawberry pie bars, strawberry crumb bars, healthy

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    WELCOME !

    I'm so happy you're here! My name is Jacqui - I'm a recipe developer, registered holistic nutritionist and culinary nutrition expert. I love all things healthy, and my goal is to inspire you to lead a healthy life through wholesome food that leaves you nourished, satisfied and energized! You'll find simple, easy-to-make naturally gluten-free, refined sugar-free and mostly dairy-free recipes your family will love!

    Learn more about me →

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