• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Buuck Farms Bakery

  • Home
  • Recipes
  • About
  • Shop

Kitchen Sink Cookie Bars

August 15, 2022 by Elizabeth Buuck Leave a Comment

Jump to Recipe·Print Recipe

Craving something salty-sweet and also only have 7 pretzels, a mostly-eaten bag of chips, a handful of m&ms, and a random almost-empty bag of chocolate chips? I got you. These are THE BEST kitchen sink cookie bars packed with all the best salty and sweet snacks. The cookie bars stay nice and soft, but have plenty of crunch-factor from all of the mix ins.

What makes these kitchen sink cookie bars THE BEST?

  • Easy & Adaptable. These bars are even more simple than whipping up a batch of cookies because there’s no scooping dough and no chill time – just throw it in the pan and bake. They’re also adaptable. Meaning you can use whatever mix-ins you like, you just need about 2 cups total of whatever mix you prefer.
  • Sweet & Salty. If you ask me, sweet and salty is the ultimate combo when it comes to dessert so these bars really hit that nail on the head if that’s your thing! However, if not you can always do all sweet mix-ins and no salty snacks!
  • Soft & Chewy. Thanks to a bit of coconut oil, these bars stay nice and gooey in the center with edges that are slightly crisp (not crunchy!) But don’t worry, you won’t taste the coconut.

How to make Kitchen Sink Cookie Bars

Preheat your oven to 350 and line an 8 inch square pan with parchment paper. Leave a bit of an overhang of parchment so that you can easily lift the bars from the pan after baking. Gather your ingredients and 2 total cups of the mix-ins of your choice. I used chocolate chips, m&ms, mini pretzels, crinkled potato chips, pistachios, and toffee bits.

In a large mixing bowl, whisk the melted butter, melted coconut oil, granulated sugar, and dark brown sugar until well combined. Next, add the egg and vanilla and whisk until smooth and glossy as pictured below.

Add in the flour and baking soda and mix until just combined, with a few streaks of flour remaining. There’s no need to add extra salt here because of the salty mix-ins. Save some of the mix-ins to sprinkle on top, then fold in the chocolate chips, toffee, pistachios, and m&ms. Finally, carefully fold in the pretzels and chips trying not to break them up too much.

Press the dough into your prepared pan in an even layer and sprinkle with the extra mix ins. Bake at 350 for 25 minutes, then allow to cool mostly before removing from the pan and slicing into bars.

Kitchen Sink Cookie Bars FAQs

  • Can I use a stand or hand mixer instead? Yes. This recipe can be made as instructed in this post, or with a hand or stand mixer. If using a mixer, just be sure not to over mix the dough once the flour has been added.
  • Can these bars be made gluten free? Yes. You should have no problem making this recipe gluten free by swapping out the all purpose flour for a gluten free 1 to 1 flour. Also, be sure all of your chosen mix ins are gluten free!
  • What other mix-ins could I use? Any nuts – walnuts, sliced almonds, peanuts, or cashews would be great! Also, mini peanut butter cups, white chocolate chips, freeze dried fruit, or little chocolate covered caramels! Really anything should work fine as long as you have 2 cups total.
  • How long will these kitchen sink cookie bars keep? You can leave these covered at room temperature for up to a week!
  • Can I make ahead/freeze this recipe? You should be able to make the dough ahead of time and freeze it for up to 3 months before baking, but I haven’t tested that to be sure. If I were to freeze this recipe I’d leave out the pretzels and potato chips and just put those on top right before baking to avoid them getting soggy.
Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Kitchen Sink Cookie Bars

5 Stars 4 Stars 3 Stars 2 Stars 1 Star No reviews
  • Author: Elizabeth Buuck
  • Prep Time: 10 min
  • Cook Time: 25 min
  • Total Time: 35 minutes
  • Yield: 16 Cookie Bars 1x
Print Recipe
Pin Recipe

Description

Soft and chewy cookie bars packed with all of the best sweet and salty mix-ins!


Ingredients

Scale
  • 1/2 C (113 g) Salted Butter, melted
  • 1/4 C (50 g) Melted Coconut Oil
  • 1/2 C (110 g) Dark Brown Sugar
  • 1/2 C (110 g) Granulated Sugar
  • 1 Lg Egg, at room temperature
  • 2 tsp Pure Vanilla Extract
  • 1 3/4 C (225 g) All Purpose Flour
  • 1/2 tsp Baking Soda
  • 2 C Mix-ins of your choice (chocolate chips, pretzels, m&ms, chips, etc)

Instructions

  • Preheat the oven to 350 and line an 8 inch square pan with parchment paper.
  • In a large mixing bowl, whisk the melted butter, coconut oil, and sugars until well combined.
  • Add the egg and vanilla extract and mix until the batter becomes smooth and glossy.
  • Fold in the flour and baking soda until mostly combined with a few streaks of flour remaining.
  • Save some of the mix ins for sprinkling on top, but fold in the rest.
  • Press the dough into an even layer into the prepared pan and top with extra mix ins.
  • Bake at 350 for 25 minutes, then let cool mostly before removing from pan and slicing into bars.

Did you make this recipe?

Tag @buuckfarmsbakery on Instagram and hashtag it #buuckfarmsbakery

If you loved this recipe for Kitchen Sink Cookie Bars, be sure to leave a star rating and review below and tag @buuckfarmsbakery on Instagram and Tiktok. To save this recipe for later, click on the Pinterest icon on any of the images throughout this post.

For more recipes you’ll love, check out my –

  • Twix Shortbread Cookies
  • Banana Fluffernutter Snack Cake
  • Peanut Butter Oreo Chocolate Chip Cookies
  • Caramel Stuffed Chocolate Chip Cookies
  • One Big S’mores Chocolate Chip Cookie
  • One Big Chocolate Chip Cookie

Filed Under: Cookies, Dessert Bars, Recipes Tagged With: compost cookie bars, compost cookies, cookie bar photography, cookie bars, kitchen sink cookie bars, kitchen sink cookies, sweet and salty desserts

Previous Post: « Vanilla Bean Cupcakes
Next Post: Gideon’s Copycat Coffee Cake Cookies »

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

Primary Sidebar

Hey, hi hello. I’m Liz. I’m here to satisfy that sweet tooth, and teach you all the tips and tricks to make your desserts next-level drool-worthy.

Here, you’ll find comforting, decadent desserts, and the occasional savory recipe with humble Midwest roots.

Click here to read more about Liz & Buuck Farms Bakery.

Archives

  • Twix Shortbread Cookies April 25, 2025
  • Banana Fluffernutter Snack Cake April 11, 2025
  • Peanut Butter Oreo Chocolate Chip Cookies March 6, 2025
  • Caramel Stuffed Chocolate Chip Cookies May 22, 2024
  • One Big S’mores Chocolate Chip Cookie April 24, 2024
  • One Big Chocolate Chip Cookie April 5, 2024
  • Lemon Curd Crinkle Cookies March 14, 2024
  • Kid’s Charcuterie Board August 28, 2023
  • Strawberry Crunch Cupcakes July 13, 2023
  • Nutella Muffins May 1, 2023
  • Salted Caramel Carrot Snack Cake April 7, 2023
  • Soft and Chewy Scotcharoos April 5, 2023

buuckfarmsbakery

🍪📸Never enough cookies.
📍Indiana
📩 [email protected]
👇🏻website, recipes, && amazon 👇🏻

Liz Buuck | BuuckFarmsBakery
I need this whole stack rn. . Recipe is my Nutell I need this whole stack rn. 
.
Recipe is my Nutella Stuffed Chocolate Chip Cookies available to my email list fam only 😮‍💨
woohoooo for Friday. We made it, guys. 🥳 
What’s everyone baking this weekend? 
I’m thinkin brownies.
The lemon has me in a CHOKEHOLD 🍋 The lemon has me in a CHOKEHOLD 🍋
I feel like this song and this photo have the same I feel like this song and this photo have the same vibe idk.
When you’re struggling with the voiceover, but y When you’re struggling with the voiceover, but your kid swears they can do it cause it “seems easy” 😂🤭
hey lil mama (this cupcake) I can transform ya. 😂 my Chocolate Espresso Cupcake recipe got a ✨MAJOR✨ glow up in the photo department and now you can tell how drool worthy they actually are. 😛😛
🎶 Wanna try out some of my re ci peeeeeees 🎶 🎶 Wanna try out some of my re ci peeeeeees 🎶
Posting this in hopes that these spring-y lemon su Posting this in hopes that these spring-y lemon sugar cookies will bring back the sun cause it’s been raining for like a week straight and I can’t take it. 🍋☀️
One Big Cookie. Leftover Easter candy edition. One Big Cookie. Leftover Easter candy edition.
Never not making these bars. 🍋🫐 Never not making these bars. 🍋🫐
Buttery brown sugar shortbread, homemade salted ca Buttery brown sugar shortbread, homemade salted caramel sauce, milk chocolate, and a pinch of flaky salt of course. The recipe for these ✨NEW✨Twix Shortbread Cookies is live on my website!!
✨NEW✨ Twix Shortbread Cookies. Recipe is live ✨NEW✨ Twix Shortbread Cookies. Recipe is live on my website 🥰
Someone said “these are the best cookies you’v Someone said “these are the best cookies you’ve ever made” 
.
sure it was my husband but he wouldn’t lie about that. 😅🤭
If you’ve ever wondered why it takes me sometime If you’ve ever wondered why it takes me sometimes MONTHS to post a new recipe. This. This is why. 🤪😵‍💫
✨NEW✨ Banana Fluffernutter Snack Cake recipe i ✨NEW✨ Banana Fluffernutter Snack Cake recipe is on my site!! Moist and tender banana cake topped with silky smooth peanut butter cream cheese frosting and swirls of marshmallow and extra peanut butter. 😛😛
Instagram post 17889741825127498 Instagram post 17889741825127498
The best lemon curd donuts in the history of lemon The best lemon curd donuts in the history of lemon curd donuts. 🍋
I’m loling. Hope everyone has a great Easter wee I’m loling. Hope everyone has a great Easter weekend filled with all your favorite desserts.
these are giving Easter brunch 🐰🥕🌸 . Bla these are giving Easter brunch 🐰🥕🌸 
.
Blackberry Mascarpone Cheesecake Bars. Recipe on my website 🫶🏻
fluffernutter is such an elite combo. fluffernutter is such an elite combo.
Load More Follow on Instagram

Footer

  • Hey Bakers!
  • Portfolio
  • Privacy Policy
  • Recipes
  • Shop
  • Work With Me

Copyright © 2025 Buuck Farms Bakery on the Foodie Pro Theme