After making Peach Crumb Bars and Strawberry Oatmeal Bars, I knew it was time to make a blueberry version—especially when I had too many fresh ones one week that needed to be used up. This recipe is my favorite because it’s allergy-friendly and the crust is so simple to make. Plus, you don’t need to precook the fruit or do anything fussy to it, which makes it even better! These Blueberry Oatmeal Bars can be served as a toddler snack, an easy dessert, or as a kids breakfast recipe. (It also works as an option in a lunchbox idea for picky eaters paired with fruit, a food with protein like yogurt or diced chicken, and more.) The bar also holds its shape well at room temperature, so you can send it as a preschool snack or peanut-free snack. (You may also like Apple Oatmeal Muffins, Banana Oatmeal Bars, Healthy Breakfast Bars, and Blueberry Yogurt Cake.)
Ingredients You Need
Here’s a look at the ingredients you need to have on hand to make Blueberry Oatmeal Bars so you know what to pick up from the store or have ready. Sign up for our email updates to get tips and ideas sent to your inbox.
Rolled oats: I add oatmeal to the crust for extra nutrients and to give the bars the classic oatmeal bar texture. Flour: This forms the base of the bars, along with the other dry ingredients. Using all-purpose flour here helps the bars stay light and delicious. Butter: I prefer to bake with unsalted butter so I can control the salt level in my baked goods, so that’s what I use here. Sugar: I add a little granulated sugar to the crust batter to help ensure it’s flavorful and has a nice texture. Milk: I keep whole dairy milk in my refrigerator so that’s what I’m using here, but you can also use plain nondairy milk if you prefer. Lemon zest and vanilla: These give additional flavor to the bars. Blueberry jam: You can use any brand or type of blueberry jam, including store bought jam or Blueberry Chia Jam. Blueberries (fresh or frozen): We add fresh fruit to the bars, though you can also use frozen berries. (You do not need to thaw them first.)
Step-by-Step Instructions
Here’s a preview of how to make these Blueberry Oatmeal Bars so you know what to expect from the process. Scroll down to the end of this post for the full information, including the amounts and the timing.
How to Store
Store Blueberry Oatmeal Bars in an airtight container at room temperature for up to 3 days or up to a week in the fridge.
Best Tips for Success
When mixing the wet ingredients into the dry, use your fingers to gently squish the dough together. Use a jam that you like the taste of since it’s a primary flavor in the Blueberry Oatmeal Bars recipe, either store bought or my Blueberry Chia Jam. Let the bars cool fully before you lift them out of the pan and slice. Use a serrated knife to slice and/or push down slowly but firmly when slicing as you get through the top crumble layer. Gluten-free: Use gluten-free cup for cup flour instead of the all-purpose and GF certified rolled oats. Dairy-free: Subsitute vegan butter or coconut oil for the butter and use dairy-free milk. To make this recipe without oats, substitute quinoa flakes. Use fresh or frozen blueberries. (If you have some leftover berries, try my Mini Blueberry Muffins!)
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