Crispy edges. Chewy centres. A Little Espresso if you’re into it. Double chocolate heaven!
These Chocolate Chocolate Chip Cookie Bars have been a long time coming and I am happy to report that they are finally perfect. I am slightly less happy to report that I have eaten an obscene and possibly embarrassing amount of them. All in the name of research you understand.
Say hello to my – an hopefully your – new favourite go-to chocolate fix. Ultra chocolatey, super chewy, insanely easy. Imagine the very best chocolate cookie you’ve ever had but even easier because it’s in bar form.

These may look kinda like brownies, but they are not. As a professional and life long brownie lover I will not dis a brownie. Ever. But once in a while I am looking for a really, really good chocolate cookie instead. And once in a while I am also too lazy to make cookies that may require dropping, shaping or chilling. So here we are.
These Double Chocolate Cookie Bars… actually triple chocolate… we’re melting it, we’re adding cocoa powder and then we’re piling in even more chocolate at the end… are exactly what I want them to be. The edges are crisp, like the best part of a brownie but amped up a thousand times. The insides intensely fudgy and chewy, but still loaded with chocolate flavour. An optional hit of espresso intensifies the chocolate flavour without overpowering it – this is the thing that will make everyone wonder why these are the best chocolate cookies they’ve ever had.

Scroll past the recipe if you’re looking for tips, substitutions, questions, etc. and details on how to make this recipe, but if you want to get straight to it, here’s my recipe-ish…

Chocolate Chocolate Chip Cookie Bars
Ingredients
- 1/2 cup butter melted
- 1/3 cup sugar
- 1/2 cup brown sugar packed
- 1 cup chocolate chips melted
- 1 egg
- 2 tsp vanilla
- 1 1/3 cups flour
- 1/4 cup cocoa powder
- 1 tbsp espresso powder *optional
- 1 tsp baking powder
- 1/2 tsp salt
- 1 cup chocolate chips
Instructions
- Combine the melted butter, sugar and brown sugar together in a bow and mix well.
- Add in the melted chocolate and mix.
- Add in the egg and the vanilla and mix well again.
- In a separate bowl combine the flour, cocoa powder, espresso powder (if using), baking powder and salt and mix well.
- Add the flour mixture into the butter mixture and mix until just combined.
- Fold in the additional cup of chocolate chips.
- Spread the batter into an 8×8 baking pan that has been sprayed or lined with parchment paper.
- Bake at 350 for 25-30 minutes.

Chocolate Chocolate Chip Cookie Bars recipe ingredients, tips, substitutions:
Butter – I use salted butter. If you’re using unsalted you might want to add in an extra pinch of salt.
Sugar – a combination of regular sugar and brown sugar (light brown sugar and dark are both fine) brings the perfect texture. No subs here.
Flour – all purpose flour. I have successfully used part oat flour and they were still delish.
Cocoa – unsweetened cocoa powder.
Espresso Powder – this is optional, but it really does amplify the chocolate flavour. They won’t taste like coffee, just like the most amazing chocolate cookie you’ve ever had.
Chocolate Chips – regular semi-sweet chocolate chips, but dark chocolate chips or chunks are also lovely.
Chocolate Chocolate Chip Cookie Bars Recipe Variations:
Salted Double Chocolate Version – as soon as they come out of the oven, give the bars a little sprinkle of flaky sea salt on top.
Triple Chocolate Version – instead of the final cup of chocolate chips, use 1/3 chocolate chips, 1/3 milk chocolate chips and 1/3 white chocolate chips.
Chocolate Walnut Version – stir in 1/2 cup chopped walnuts along with the chocolate chips.

Chocolate Chocolate Chip Cookie Bars Recipe, how to make it…
These brownies are about to become your go-to chocolate fix, so let’s give them the star treatment they deserve. Here’s how to make them—with a little flair, because you’re not just baking brownies, you’re creating happiness in an 8×8 pan.
Start by combining the melted butter, sugar, and brown sugar and mix until it’s a smooth, glossy liquid gold. Add in the melted chocolate and mix well. Dip your finger in and taste it for quality control.
Crack in egg and add a splash of vanilla, measured with your heart if you choose. Whisk well.
Mix up your dry ingredients: flour, cocoa powder, espresso powder (optional but do it), baking powder, and a pinch of salt. You can skip the espresso powder if you like, but trust this pro tip: it doesn’t make your brownies taste like coffee, I promise, it just enhances the chocolate flavour in the very best way.
Fold the flour mixture into the butter mixture, mixing gently until just combined. We’ve talked about over-mixing before so you don’t need another lecture here.
Fold in the chocolate chips. And don’t feel any shame whatsoever if you pilfer a few chips for yourself here – it’s part of the process and you deserve it for all this hard work.
Pour the batter into your baking pan, spread it evenly into the corners, and bake. Your sign that they’re done is going to be a slightly set top but a gooey centre. The edges will slightly pull away from the pan, and a toothpick inserted into the middle should come out with a few crumbs.
Let the bars cool before cutting them. I understand how hard this is, but if you slice them too soon, they’ll still be delicious, but you’ll have a chocolatey mess on your hands, which I personally have no problem with, but if you care about presentation try to be patient.

looking for more quick and easy desserts like this Chocolate Chocolate Chip Cookie Bars recipe? try these…
- Try my super easy and very delicious Chocolate 1/4 Sheet Cake
- Or these Peanut Butter and Chocolate Rice Krispie Bars
- Blondies are one of my go-to easy desserts and these Peanut Butter and Fudge Stuffed Blondies are one of my faves.
- For a fancier take on one of the easiest desserts ever try my Brown Butter & Bourbon Impossible Pie

If you like this Chocolate Chocolate Chip Cookie Bars Recipe let me know what you think in the comments below and please find and follow me on Social Media!