Introduction

These Blueberry Coffee Cake Cookies combine the best of tender cookies, fresh blueberries, and a sweet streusel topping. They’re bursting with juicy berry jam inside and finished with a light glaze, perfect for breakfast or an afternoon treat.

A close-up of stacked crumbly blueberry cookies with three main layers: a golden crumb topping on top with a slightly rough texture, a middle purple layer of juicy blueberry filling showing oozing fruit, and a bottom light beige cookie base that looks soft and thick. Drizzled white icing flows over the crumb topping in thin lines. Whole blueberries are scattered around the cookies, resting on a white marbled surface. In the background, a small clear glass jar holds white and yellow daisy flowers. photo taken with an iphone --ar 4:5 --v 7

Ingredients

6 oz (170 g) fresh blueberries
2 tbsp (25 g) granulated white sugar
1 tbsp fresh lemon juice
1/2 tsp vanilla
3/4 tsp cornstarch
1/2 cup (112 g) unsalted butter, softened
1 cup (220 g) brown sugar, packed
1 cup (125 g) all-purpose flour, spooned and leveled
1/4 tsp salt
2 1/2 cups (313 g) all-purpose flour, spooned and leveled
1/2 tsp baking powder
1/2 tsp salt
1 cup (224 g) unsalted butter, softened
1 1/4 cups (250 g) granulated white sugar
1 egg, at room temperature
1 tbsp vanilla
8 oz (226 g) fresh blueberries
Jam (from above)
1 cup (130 g) powdered sugar
3-5 tsp whole milk

Instructions

Step 1: For the Blueberry Jam, add 6 oz fresh blueberries, granulated sugar, lemon juice, vanilla, and cornstarch to a small pot. Cook over medium-low heat for 25-30 minutes, mashing some berries about 8 minutes in. Stir frequently near the end to prevent sticking. Measure out ¼ cup and let cool completely, covering with plastic wrap to avoid skin formation.
Step 2: Make the Brown Sugar Streusel by mixing softened butter and brown sugar in a medium bowl with an electric mixer on high speed until combined. Add 1 cup flour and ¼ tsp salt, mixing until the mixture forms large crumbs. Chill in the fridge for 30 minutes.
Step 3: Preheat oven to 350 ℉ (175 ℃). Line two baking sheets with parchment paper.
Step 4: In a large bowl, whisk together 2 ½ cups flour, baking powder, and ½ tsp salt. Set aside.
Step 5: In another large bowl, cream together 1 cup softened butter and 1 ¼ cups granulated sugar with an electric mixer on high speed until fluffy, about 2 minutes.
Step 6: Add the egg and vanilla, mixing on medium speed until pale and fluffy, 1-2 minutes.
Step 7: Gradually add dry ingredients to the wet, mixing on low until dough just comes together. Scrape sides of bowl as needed.
Step 8: Push dough to the sides of the bowl and gently fold in 8 oz fresh blueberries with a spatula.
Step 9: Create small holes in the dough and spoon half of the cooled blueberry jam into these holes. Fold jam gently into the dough, careful not to fully mix.
Step 10: Flatten dough slightly, make more holes, and add the rest of the jam. Fold gently again.
Step 11: Scoop dough using a 2 tablespoon scoop onto prepared baking sheets. Use a tablespoon to create small indents in each dough mound.
Step 12: Measure a heaping slightly packed tablespoon of streusel and place it on top of each cookie dough portion. Press gently to secure.
Step 13: Bake cookies for 12 minutes, then remove and use a slightly larger circular cutter or glass to push each cookie into a perfect circle. Return to oven and bake 2 more minutes.
Step 14: Let cookies cool on the baking sheet for at least 10 minutes to firm up and finish baking.
Step 15: Transfer to a cooling rack to cool completely.
Step 16: Prepare icing by mixing powdered sugar with 3 tsp milk, adding more milk until it reaches a pourable consistency.
Step 17: Drizzle icing over cooled cookies, then enjoy!

Tips & Variations

Make sure to gently fold the jam into the dough to create beautiful swirls without fully mixing it in for pockets of flavor.
Use frozen blueberries if fresh aren’t available, but thaw and drain them first to reduce excess moisture.
For extra crunch, sprinkle some chopped nuts over the streusel before baking.
If you prefer a more pronounced lemon zing, add a teaspoon of lemon zest to the jam mixture.

Storage

Store the cookies in an airtight container at room temperature for up to 3 days. For longer storage, freeze for up to 2 months and thaw at room temperature. Reheat briefly in a warm oven or microwave before serving for a fresh-baked taste.

How to Serve

A close-up of stacked blueberry crumb cookies with a bite taken from the top one, showing juicy, deep purple blueberry filling mixed in with a crumbly light golden cookie base. The cookies have a topping of chunky, crumbly streusel pieces in pale golden color, drizzled with a thin, white glaze. Around the base are a few fresh whole blueberries, and to the right, a small glass jar holds white daisy flowers with yellow centers, all set on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I make the blueberry jam ahead of time?

Yes, the jam can be made a day in advance and kept refrigerated. Just cover it tightly to prevent skin from forming and bring it to room temperature before adding to the dough.

Why do the cookies need to cool on the baking sheet?

Because they have fresh berries and jam, cooling on the sheet helps them set and finish baking gently, preventing them from spreading too much and becoming too soft.