Broken cookie pieces with chocolate inside.

Candy Bar Cookies

These candy bar cookies are the softest, fluffiest cookies packed with chopped chocolate bar pieces. Make them with your favorite chocolate bars!

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These cookies are a great way to use leftover Halloween candy. I had a mixture of fun size Snickers, Milky Way, and 3 Musketeers bars. I don’t typically eat Snickers on their own, but I thought the bars would all make a nice cookie. These cookies did not disappoint! Their softness and fluffiness rival my Soft Snickerdoodle Cookies. They also stayed soft after several days.

Broken cookie pieces with chocolate inside in front of a stack of cookies.

What makes these soft cookies soft?

Short answer: baking science!

These cookies use all brown sugar. Brown sugar retains more moisture during baking than white sugar. Brown sugar is more acidic than white sugar, which helps the eggs solidify faster during baking and slows spreading. The egg also contributes to moisture and structure. (See How To Make Soft or Crispy Cookies by The Spruce Eats and Cookie Chemistry by King Arthur Flour.)

Most of my cookie recipes (such as my Fruitcake Cookies and Spiced Pecan Chocolate Chip Cookies) use one teaspoon of baking soda, but I increased the amount by a quarter teaspoon for this recipe. I think that contributed to some additional rise and fluffiness.

What’s interesting about these cookies is that the dough is not chilled. Generally, chilled cookie dough will spread slower during baking and will be softer. I haven’t made this exact cookie recipe with chilled dough to test the difference between chilling versus not.

It’s also important to cream the butter and sugar well in the beginning. I gave it a solid two minutes until it got really light and fluffy. This aerates to create lightness. (When I was a kid, I hated “the butter and sugar part” of baking. I used to have to cream the butter and sugar by hand with a wooden spoon. I guess Mom didn’t trust me with kitchen electrics, probably for good reason!)

The candy bar ingredients could also create some benefits for softness in these cookies, but I’m not totally sure. I plan to test this recipe with basic chocolate chip cookies soon and compare the results to these.

Continue reading after the recipe card for step-by-step photos, notes, and answers to common cookie-baking questions.

Stack of cookies with chocolate pieces in the middle behind broken cookies.
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5 from 1 vote

Candy Bar Cookies

These candy bar cookies are the softest, fluffiest cookies packed with chopped chocolate bar pieces. Make them with your favorite chocolate bars!
Prep Time15 mins
Cook Time10 mins
Cooling Time5 mins
Total Time30 mins
Course: Dessert
Cuisine: American
Keyword: cookie recipe, cookies, drop cookies
Servings: 3 dozen

Ingredients

Instructions

  • Preheat oven to 350°.
  • Microwave butter for 45 seconds (it will be partially melted).
  • Cream together butter and sugar on medium speed until mixture gets light and fluffy, about 2 minutes.
  • Reduce mixer speed to low. Add eggs one at a time and mix until fully incorporated, about 1 minute.
  • Mix in vanilla.
  • Mix in baking soda.
  • Add flour a half cup at a time and mix until all flour is incorporated.
  • Mix in candy pieces.
  • Using a spoon or cookie scoop, form dough into balls and place onto greased cookie sheets.
  • Bake for about 10 minutes until cookies begin to get brown.
  • Let cookies cool on cookie sheet for about 5 minutes before removing from the baking sheet.

Notes

I used Snickers, Milky Way, and 3 Musketeers bars. If you don’t have quite enough chocolate bar pieces, you can supplement with chocolate chips. 

Step-By-Step Photos & Recipe Notes

Chop the candy bars into small pieces. I chose Snickers, Milky Way, and 3 Musketeers for these. If you don’t have enough chocolate bar pieces, you can supplement with chocolate chips, M&Ms, or chocolate chunks. Preheat oven to 350°.

Chopped candy bar pieces on a cutting mat next to a knife.

Microwave butter for 45 seconds (it will be partially melted).

Why did I microwave the butter instead of letting it soften to room temperature? Time. The first time I made these, it was an impromptu decision. I microwaved for 45 seconds, which results in accidentally melting some of the butter, but it seemed to work fine.

Salted or unsalted butter? I don’t think it really matters. If you use unsalted butter, you could add a pinch of salt later on when adding the baking soda, but you don’t have to. I went rogue and used salted butter for this. Actually, I do that for most recipes, even when they call for unsalted. Why?

Light brown sugar or dark brown sugar? I used light brown, but if you just have dark, go for it!

Cream together butter and sugar on medium speed until mixture gets light and fluffy, about 2 minutes. Don’t skimp on this step!

Creamed butter and sugar in a stand mixer bowl.

Reduce mixer speed to low. Add eggs one at a time and mix until fully incorporated, about 1 minute. Mix in vanilla. Mix in baking soda. Add flour a half cup at a time and mix until all flour is incorporated.Mix in candy pieces.

Cookie dough in a stand mixer bowl.

Using a spoon or cookie scoop, form dough into balls and place onto greased cookie sheets.

Is greasing the cookie sheet important? Greasing the cookie sheet is important for this recipe to prevent sticking. I made a batch without greasing the cookie sheet to compare and the cookies stuck a lot more. Some of the sticking is because of the caramel in the candy bar pieces.

What do I use to grease the cookie sheet? I used a cooking spray like original Pam to grease the cookie sheet. You can use parchment paper or a silicone baking mat.

Twelve unbaked cookies on a cookie sheet.

Bake for about 10 minutes until cookies begin to get brown. Let cookies cool on cookie sheet for about 5 minutes before removing from the baking sheet.

Broken cookie pieces with chocolate inside in front of a stack of cookies. Text over the image says Candy Bar Cookies.
Candy Bar Cookies

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