These soft and chewy blueberry oatmeal cookies are the perfect balance of wholesome oats and juicy fresh blueberries. Made with simple pantry ingredients, this easy cookie recipe comes together quickly and bakes up tender with lightly crisp edges, ideal for snacks, dessert, or afternoon coffee.
Preheat your oven to 350℉ / 176℃ (Gas Mark 4) so it’s ready to go. This gives the cookies the perfect start for even baking and soft centers with lightly crisp edges.
In a large mixing bowl, cream together the unsalted butter, brown sugar, and granulated sugar until light and fluffy. This step helps create a soft, chewy cookie texture. Add in the egg and vanilla extract and beat for 1–2 minutes, scraping down the sides of the bowl as needed, until everything is fully combined.
Next, add the all-purpose flour, oats, baking soda, and salt to the wet ingredients. Mix on low speed until a thick, well-combined cookie dough forms, about 2–3 minutes. Gently fold in the fresh blueberries, being careful not to overmix so they stay nice and juicy.
Scoop the dough onto your prepared baking sheet and bake for 14–15 minutes, or until the edges are lightly golden and the centers are just set.
Remove from the oven and let the cookies cool in the pan for a few minutes before transferring them to a wire rack to cool completely. Serve and enjoy these soft, bakery-style blueberry oatmeal cookies!
Store your blueberry cookies in an airtight container for up to 3 days.
Refrigerate the cookies and keep in a sealed container for up to 5 days for extra freshness.
Freeze baked cookies in a freezer-safe container for up to 2 months. Thaw at room temperature before serving.
Warm cookies in the microwave for 10–15 seconds to refresh the texture.
Unsalted butter (softened): Creates rich flavour and gives the cookies a soft, tender texture. Using unsalted butter lets you control the salt level.
Brown sugar: Adds moisture and a subtle caramel flavour, helping keep the cookies soft and chewy.
Granulated sugar: Balances the brown sugar and helps the cookies spread slightly while baking.
Vanilla extract: Enhances the overall flavour and adds warmth to the cookie dough.
Egg: Binds the ingredients together and gives the cookies structure while keeping them tender.
All-purpose flour: Provides the base structure for the cookies without making them too dense.
Oats: Add texture and a slightly hearty bite, making these cookies extra satisfying.
Baking soda: Helps the cookies rise and spread properly for a soft center and lightly crisp edges.
Salt: Balances the sweetness and brings out all the flavours.
Fresh blueberries: Add bursts of juicy sweetness and a pop of fresh fruit flavour in every bite.

Author: Sarah Young
Can I use frozen blueberries?
Yes, but do not thaw them first. Gently fold them into the dough to prevent excess moisture and colour bleeding.
Why is my dough thick?
A thick dough is normal and helps keep the cookies from spreading too much while baking.
Can I substitute quick oats for rolled oats?
Yes, but the texture will be softer and less chewy than using old-fashioned oats.
How do I stop the cookies from becoming soggy?
Make sure the cookies are fully cooled before storing and use an airtight container.
Can I add lemon zest or white chocolate chips?
Absolutely! Lemon zest adds brightness, and white chocolate pairs beautifully with blueberries.