Grandma Jackie's Blueberry Lemon Crumble Cake

National Blueberry Day

Celebrate July 8 with America's Favorite Little Blue Superfruit

There's something special about blueberries. Whether sprinkled over pancakes, folded into muffins, baked into pies, or enjoyed fresh by the handful, these tiny berries have become one of North America's most beloved summertime treats.

Every July 8, we celebrate National Blueberry Day, recognizing not only their incredible flavor but also the hardworking farmers who cultivate millions of pounds of blueberries each year. Native to North America, blueberries have been enjoyed for centuries and remain one of the most nutritious fruits you can add to your table.

To celebrate the occasion, we're sharing one of our favorite summertime desserts—Grandma Jackie's Blueberry Lemon Crumble Cake—along with a few travel ideas for anyone looking to explore some of America's beautiful blueberry-growing regions.

Grandma Jackie's Blueberry Lemon Crumble Cake

Moist, buttery cake bursting with juicy blueberries, topped with a sweet cinnamon crumble and finished with a bright lemon glaze. It's perfect for brunch, afternoon coffee, family gatherings, or dessert on the porch after a summer cookout.

Prep Time

20 minutes

Bake Time

40–45 minutes

Servings

8–10

Ingredients

Cake Batter

• 2 cups all-purpose flour

• 2 teaspoons baking powder

• ½ teaspoon salt

• ½ cup unsalted butter, softened

• ¾ cup granulated sugar

• 2 large eggs

• ½ cup whole milk

• Zest of one lemon

• 2 cups fresh blueberries

Crumble Topping

• ½ cup brown sugar

• ½ cup all-purpose flour

• ½ teaspoon ground cinnamon

• ½ cup cold unsalted butter, cubed

Optional Lemon Glaze

• 1 cup powdered sugar

• 2–3 tablespoons fresh lemon juice

• ½ teaspoon vanilla extract (optional)

Whisk together until smooth and drizzle over the cooled cake.

Directions

• Step 1

Preheat your oven to 350°F. Grease a 9-inch round or square baking pan.

• Step 2

In a medium bowl, whisk together:

• Flour

• Baking powder

• Salt

Set aside.

• Step 3

In a large mixing bowl, cream together the softened butter and sugar until light and fluffy.

Add the eggs one at a time, mixing well after each addition.

Stir in the milk and fresh lemon zest.

• Step 4

Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

Gently fold in the blueberries using a rubber spatula to avoid crushing them.

• Step 5

Prepare the crumble topping by combining the brown sugar, flour, cinnamon, and cold butter. Cut the butter into the mixture using a pastry cutter or fork until coarse crumbs form.

Sprinkle evenly over the cake batter.

• Step 6

Bake for 40–45 minutes, or until a toothpick inserted into the center comes out clean.

Allow the cake to cool slightly before drizzling with the optional lemon glaze.

Slice and enjoy!

Grandma Jackie's Baking Tips

Toss Your Blueberries with Flour

Coating fresh or frozen blueberries with a tablespoon of flour before folding them into the batter helps prevent them from sinking to the bottom during baking.

Don't Overmix

Once the flour is added, mix only until combined. Overmixing can make cakes dense instead of light and tender.

Fresh or Frozen?

Fresh blueberries are wonderful during the summer months, but frozen blueberries work beautifully year-round. There's no need to thaw them first—just fold them into the batter while still frozen.

Add Extra Lemon

Love citrus? Add an extra teaspoon of lemon zest or a splash of fresh lemon juice to brighten the flavor even more.

Delicious Variations

One of the best things about this recipe is how easily you can customize it.

Try adding:

• Chopped pecans or walnuts for crunch

• White chocolate chips for extra sweetness

• Fresh raspberries or blackberries

• A streusel topping with rolled oats

• Cream cheese frosting instead of lemon glaze

• For a brunch-worthy treat, serve warm with a dollop of whipped cream or a spoonful of vanilla Greek yogurt.

Serving Suggestions

This cake is incredibly versatile and pairs well with almost any summer occasion.

Serve it:

• With fresh coffee for breakfast

• Alongside iced tea on the patio

• Warm with a scoop of vanilla ice cream

• As part of a holiday brunch buffet

• At picnics, potlucks, and family reunions

It also freezes well, making it easy to prepare ahead for special gatherings.

Travel the Blueberry Trail

Blueberries thrive in several beautiful regions across North America, making berry season the perfect excuse for a scenic summer road trip.

Maine

Maine produces the majority of America's wild blueberries. During harvest season, the countryside comes alive with colorful fields, charming coastal towns, fresh seafood, and picturesque lighthouses. It's a wonderful destination for food lovers and nature enthusiasts alike.

Michigan

Michigan's lakefront climate creates ideal growing conditions for blueberries. Visitors can enjoy U-pick farms, farmers markets, wineries, and beautiful drives along the shores of the Great Lakes.

Oregon

Known for its fertile valleys and spectacular scenery, Oregon offers visitors berry farms, vineyards, mountain views, and countless opportunities for outdoor adventure.

New Jersey

Often called the birthplace of commercial blueberry farming, New Jersey has a long history with this beloved fruit and remains one of the country's leading producers.

No matter which destination you choose, berry season is a wonderful time to explore local farms, sample homemade jams and baked goods, and enjoy the slower pace of rural America.

Did You Know?

Blueberries are one of the few fruits native to North America.

They are naturally rich in antioxidants, vitamin C, vitamin K, and manganese.

Blueberries freeze exceptionally well, making them a great ingredient to keep on hand year-round.

Peak blueberry season generally runs from late June through August, depending on the region.

Follow Grandma Jackie's Recipes & Travel Inspo

If you enjoy seasonal recipes, classic comfort food, and travel inspiration, we'd love to have you join our growing community.

Follow Grandma Jackie's Recipes & Travel Inspo on Facebook for:

• Family-friendly recipes

• Holiday baking ideas

• Seasonal drinks

• Scenic road trips

• Cruise inspiration

• Destination guides

Ready for Your Next Adventure?

Whether you're planning a relaxing weekend getaway, a scenic road trip, or the cruise of a lifetime, Jackie Fleetwood Travels is here to help.

Visit JackieFleetwoodTravels.com for:

Cruise deals

Vacation planning

Foodie travel inspiration

Destination guides

Seasonal travel ideas

Bucket-list adventures

Because every journey is a little sweeter when delicious food and unforgettable destinations come together.

Happy National Blueberry Day!

"Life is full of sweet moments—pick a few, bake a few, and enjoy every one."