Whip up this decadent strawberry lemon blondies recipe. You will have a strawberry batter and lemon batter that gets swirled together and then baked into these incredible bars. This strawberry lemon dessert is a sliceable bar that is perfect for after-dinner, bake sales, or take to your summer cookout.

strawberry lemon blondie bars on the table with glaze on top

Not only are these lemon strawberry blondies incredible, but they are bright and colorful. I love that you use box cake mix as the base, so the prep work is easy.

stack of three strawberry Lemon Blondies with a strawberry and sliced lemon next to them

Consider these strawberry cheesecake cookies, they are so popular. Or try this peach cobbler that uses cake mix as the crust.

lemon strawberry blondies on table sliced into squares

Reasons You Will Love This Recipe

Starts with a boxed cake mix as the base for the muffins.
Easy step-by-step ingredients.
Simple flavors pair up and create a fantastic fruity twist.
Light and fluffy bars.
Sliceable and great to serve up a crowd.

ingredients for making strawberry lemon brownies on table in glass bowls

Ingredients Needed

Cake Mix – You will want a box of strawberry cake mix and a box of lemon cake mix.
Lemon – Fresh lemon juice and zest will be needed.
Strawberries – Fresh strawberries are diced into small pieces.
Eggs – Room temperature eggs are best for incorporating into the batter.
Powdered Sugar – This is the base for the glaze you will drizzle on top.

strawberry cake batter in bowl with water and eggs

Variations to Recipe

Cherry Chip cake instead of strawberry.
Swap lemon cake mix with vanilla, chocolate, etc.
Add fresh strawberries that are finely diced into the powdered sugar glaze.
Dust with powdered sugar instead of a glaze topping.
Mix in white chocolate chips for added sweetness.

sliced blondie bars with glaze on top sitting on tray

Expert Tips

Feel free to cut the edges around the bars so you get clean squares that are evenly shaped.
Make sure the strawberry lemon brownies are fully cooled before you add the glaze on top. Or it will melt into the bars.
The batter is thick, so know it takes a bit to create that swirl effect.
Don’t overmix the batter or it can make your bars dense.
Lining the pan with parchment paper is a great way to easily remove the bars so you can slice.
Ensure you preheat the oven before you bake the bars in the oven.

stack of three strawberry Lemon Blondies with a a bite taken out

Storing

These cake mix strawberry lemon blondies need to be stored in a sealed container and stored in the fridge. These bars will last 3-4 days, or depending on how moist they are they can go up to 5 days at times. Due to the fresh strawberries refrigeration is needed.

Go ahead and freeze any of the bars you don’t plan to eat right away. Just place it in a freezer bag or container and freeze for 2-3 months. Then when ready to eat thaw on the counter for 30 minutes to an hour. Or refrigerate and thaw slowly overnight.

lemon strawberry bars stacked on plate with fresh fruit around the plate on table

Can I use frozen strawberries instead of fresh ones?

Yes, you can use frozen strawberries, just thaw them. Once thawed drain off excess liquid and then dice up into small pieces.

Can I add nuts or other mix-ins to the blondies?

Feel free to add in chocolate chips, almonds, cashews, walnuts, or other items. Even coconut flakes would be a delicious elevated flavor.

strawberry Lemon Blondies on a table with a strawberry and sliced lemon next to them

What size pan does this dessert need?

You will make a 9×13 casserole dish size. If you decide to double the recipe just bake in two separate pans.

Can I make these blondies gluten-free?

Feel free to use gluten-free cake mixes in exchange for a classic cake mix. You are more than welcome to make them with gluten-free mixes if you need.

stacked bars on table with strawberries in front on table

There’s nothing dry or crumbly here!, they will melt right in your mouth like an excellent blondie should.

one strawberry Lemon Blondies with a strawberry with a bite taken out on a table

More Desserts

Strawberry Lemon Blondies

Course Dessert

Prep Time 15

Cook Time 25

Total Time 40

Servings 15 brownies

Strawberry Lemon Blondies are a delicious strawberry and lemon swirled blondie recipe that is bursting with sweet flavor. Whip these up with cake mix as the base.

Ingredients

Strawberry Brownies Ingredients:

1 15.25 oz box of strawberry cake mix I used Betty Crocker
1/3 cup lemon juice
2 large eggs
1/2 cup fresh strawberries chopped

Lemon Brownies Ingredients:

1 15.25 oz box of lemon cake mix I used Betty Crocker
1/3 cup lemon juice
2 large eggs

Glaze Ingredients:

2 teaspoons lemon zest
1 1/2 cups powdered sugar
3 tablespoon lemon juice add a few extra drops if needed for desired consistency

Instructions

Preheat oven to 350 degrees. Line your 9×13 baking dish with parchment paper. Set it to the side.
In one bowl you will add your lemon cake, lemon juice, egg, and zest. Mix well to combine. Then set it to the side.
In a new bowl add your strawberry cake mix, lemon juice, and eggs. Mix well. Then fold in the strawberries.
Spoon the lemon and strawberry batter into different sections in the pan. You want to create dimension
Then you will use a knife and swirl the two flavors together.
Bake for 25 minutes or until the blondies are fully cooked. Use a toothpick to stick in center and make sure that there is no wet batter left.
Remove the bars and let them cool completely. Once cooled slice into squares.
In a small bowl mix your glaze ingreidents. Once it is fully mixed drizzle it over the strawberry lemon brownies.

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