When you bite into these amazing treats, you'll taste butterscotch background notes thanks to the butter, brown sugar, and vanilla. And though they're more "cakey" than a traditional blondie, once cooled, you will get a slightly chewy texture with a nice, crusty top reminiscent of an actual blondie. Best of all, though, this "blueberry" version has less calories and more nutrition than a regular blondie (more on that below).
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Cleo Coyle writes two bestselling mystery series with her husband. To learn more, click here. |
This recipe first appeared in our 13th Coffeehouse Mystery, Billionaire Blend, in which our amateur sleuth, single mom and coffeehouse manager Clare Cosi, saves the life of a customer who turns out to be a young billionaire. As a thank you, the man hires Clare to create the most exclusive and expensive coffee blend on the planet. She's thrilled...until she can't decide whether her new benefactor is the target of a murderer or trying to make his own killing.
In the book, Clare serves up these Blueberry Blondies to some very happy customers. And Marc and I are always happy to devour a fresh pan when we bake them up in our own kitchen. Though fresh blueberries are plentiful now, you can make this recipe anytime of year because it works just as well with frozen berries.
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Once strained, Norwegian Egg Coffee
produces a very pretty (and smooth!) amber-colored beverage. The egg proteins are what make the magic, as they do in today's recipe for Blueberry Blondies. To see my recipe for Norwegian Egg Coffee, click here. |
Finally, here's a clue to maintaining the chewy texture with less butter. It's the additon of an astringent ingredient (in this case vinegar, but lemon juice will also work). It interacts with the proteins in the incredible, edible egg--a baker's trick that's been around for years.
~ Cleo
To download this recipe in
a free PDF document
that you can print,
save, or share, click here.
a free PDF document
that you can print,
save, or share, click here.
Blueberry Blondies
Makes one 8-inch square pan of blondies
(Cut as you like, in my photos, you see 16 small squares)
INGREDIENTS
2 large eggs
1 teaspoon apple cider vinegar (Do not omit! The vinegar
interacts with the eggs to create the proper texture.)
1 cup light brown sugar, packed
1/4 cup white, granulated sugar
1 teaspoon pure vanilla extract
1 teaspoon fresh lemon zest (grated rind of a lemon,
yellow only, no bitter white pith)
1/4 teaspoon table salt (+ a generous pinch)
3 tablespoons unsalted butter, melted and cooled a bit
1/8 teaspoon baking soda
1 cup all-purpose flour
1 cup frozen (or fresh) blueberries
DIRECTIONS:
Step 1 - Prep oven and pan: Preheat oven to 325° F. Because this is a relatively low fat recipe and blueberries secrete juice as they bake, the best way to prevent sticking is to create a parchment paper sling for your 8-inch square pan (see my photo).
Step 2 – One bowl mixing method: Into a large mixing bowl, break 2 eggs, add the cider vinegar, and whisk well. Add the brown and white sugars, vanilla extract, lemon zest, and salt. Whisk until well blended. Add melted (and cooled!) butter and the baking soda. Whisk again until smooth. Now add the flour and switch to a spoon or spatula, stirring well. (Do not over-mix at this point.) Gently fold in the blueberries, trying not to smash or crush them.
Step 3 – Bake: Transfer batter to the prepared baking pan. Batter will be thick but loose enough to pour. Be sure to even it out in the pan. Bake in your well pre-heated 325° F oven for 30 to 40 minutes (exact time depends on your oven). The low temperature and long cooking time will promote more even baking. The pan of blondies is done when the top is deep golden brown and firmly set. The slight cracking that you see in my photos (the kind you usually find on the top surface of a brownie or blondie) will appear when the blondies are cooled and cut.
Makes one 8-inch square pan of blondies
(Cut as you like, in my photos, you see 16 small squares)
INGREDIENTS
2 large eggs
1 teaspoon apple cider vinegar (Do not omit! The vinegar
interacts with the eggs to create the proper texture.)
1 cup light brown sugar, packed
1/4 cup white, granulated sugar
1 teaspoon pure vanilla extract
1 teaspoon fresh lemon zest (grated rind of a lemon,
yellow only, no bitter white pith)
1/4 teaspoon table salt (+ a generous pinch)
3 tablespoons unsalted butter, melted and cooled a bit
1/8 teaspoon baking soda
1 cup all-purpose flour
1 cup frozen (or fresh) blueberries
Step 1 - Prep oven and pan: Preheat oven to 325° F. Because this is a relatively low fat recipe and blueberries secrete juice as they bake, the best way to prevent sticking is to create a parchment paper sling for your 8-inch square pan (see my photo).
Step 2 – One bowl mixing method: Into a large mixing bowl, break 2 eggs, add the cider vinegar, and whisk well. Add the brown and white sugars, vanilla extract, lemon zest, and salt. Whisk until well blended. Add melted (and cooled!) butter and the baking soda. Whisk again until smooth. Now add the flour and switch to a spoon or spatula, stirring well. (Do not over-mix at this point.) Gently fold in the blueberries, trying not to smash or crush them.
Step 3 – Bake: Transfer batter to the prepared baking pan. Batter will be thick but loose enough to pour. Be sure to even it out in the pan. Bake in your well pre-heated 325° F oven for 30 to 40 minutes (exact time depends on your oven). The low temperature and long cooking time will promote more even baking. The pan of blondies is done when the top is deep golden brown and firmly set. The slight cracking that you see in my photos (the kind you usually find on the top surface of a brownie or blondie) will appear when the blondies are cooled and cut.
Allow to cool in the pan for 10 minutes before gently lifting by the parchment paper handles. Cut into 16 small squares and...eat with joy!
F o o d i e
Photos
Photos
Adding melted (and cooled) butter to the batter. |
Batter is thick but loose enough to pour. Be sure to even it out in the pan. |
Eat (and read) with joy!

Our NEWCoffeehouse MysteryNow on Sale!
Learn More or Buy at:

Cleo Coyle’s Honey Roasted
is not only a coffee lover's mystery.
It's a culinary mystery with a tempting
menu of delicious recipes!
Click here or on the image (above)
for Cleo Coyle's Free Recipe Guide
to HONEY ROASTED
🔎
Don't miss Cleo's new
Haunted Bookshop
Mystery
"Terrific Series"
--Criminal Element
Our NEW
Coffeehouse Mystery
Now on Sale!
Learn More or Buy at:
Cleo Coyle’s Honey Roasted
is not only a coffee lover's mystery.
It's a culinary mystery with a tempting
menu of delicious recipes!
Click here or on the image (above)
for Cleo Coyle's Free Recipe Guide
to HONEY ROASTED
🔎
Don't miss Cleo's new
Haunted Bookshop
Mystery
"Terrific Series"
--Criminal Element