Easy Suzy-Q Brownies (+Video)
Suzy-Q Brownies is just like those favorite Hostess treats – only better. Made with a boxed brownie mix and a creamy marshmallow filling.
A FUN BROWNIE RECIPE
So, my husband and I got crazy excited when Hostess started making their Suzy-Q snack cakes again. And then were promptly disappointed when they were tinier than they used to be and lacked the old school flavor they used to have in their hay day. Even Twinkies have lost their special taste these days.

BROWNIE MIX AND MARSHMALLOW FLUFF
So I figured – why not make my own Suzy Q’s? I wanted them to be easy to make and I wanted a super-fudgy taste so I decided on brownies instead of cake. And I am using a brownie mix to simplify the whole process. They are a bit messy – not gonna lie – but they are oh so good and totally worth every single bite!

INGREDIENTS NEEDED: (FULL RECIPE AT THE BOTTOM OF THE POST)
- boxed fudge brownie mix
- large eggs
- water
- vegetable oil
- salted butter
- powdered (confectioners) sugar
- vanilla extract
- marshmallow creme (Marshmallow Fluff)
HOW TO MAKE SUZY-Q BROWNIES:
Preheat oven to 325f degrees. Spray the bottom of a 10x15x2 baking dish (also called a lasagna pan) with nonstick cooking spray. In a large bowl, prepare both boxes of brownies (mixing together brownie mix, eggs, water and oil.)

Now this is the hard part – resist dipping your fingers into the deliciousness. Or do it – I won’t tell 😉

Pour the brownie mixture into the prepared baking dish. Bake for about 35-40 minutes until center is set.

Allow brownies to cool completely.

Loosen the edges of the brownie from the sides of the pan with a butter knife. Invert pan onto a large cutting board to release the brownie from the pan. Carefully cut the brownie in half, horizontally (lengthwise.) Note: this is easiest if you spray your knife with nonstick cooking spray. Also, if the edges of your brownie got a bit crunchy, cut the edges off first.

In a separate bowl, prepare filling. Using an electric mixer, cream butter. Then add powdered sugar and vanilla extract. Stir again. Finally mix in marshmallow creme.

Evenly spread filling mixture on one half of the brownie.

Carefully place the other half of the brownie on top.

Then cut into 12 squares

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Suzy-Q Brownies
Ingredients
For the brownies:
- 2 boxes fudge brownies (family size for 9X13-inch pan) (I like Duncan Hines Decadent Fudge)
- 4 large eggs
- ¼ cup water
- ⅔ cup vegetable oil
For the filling:
- 1 cup (2 sticks) salted butter, softened to room temperature
- 1 cup powdered sugar
- ½ teaspoon vanilla extract
- 7.5 ounce jar marshmallow creme
Instructions
- Preheat oven to 325f degrees. Spray the bottom of a 10x15x2 baking dish (also called a lasagna pan) with nonstick cooking spray.
- In a large bowl, prepare both boxes of brownies (mixing together brownie mix, eggs, water and oil.)
- Pour the brownie mixture into the prepared baking dish.
- Bake for about 35-40 minutes until center is set. Allow brownies to cool completely
- Loosen the edges of the brownie from the sides of the pan with a butter knife. Invert pan onto a large cutting board to release the brownie from the pan.
- Carefully cut the brownie in half, horizontally. Note:this is easiest if you spray your knife with nonstick cooking spray. Also, if the edges of your brownie got a bit crunchy, cut the edges off first.
- In a separate bowl, prepare filling. Using an electric mixer, cream butter. Then add powdered sugar and vanilla extract. Stir again. Finally mix in marshmallow creme.
- Evenly spread filling mixture on one half of the brownie.
- Carefully place the other half of the brownie on top. Then cut into 15 squares.
Video
Nutrition
Nutritional Disclaimer
“The Country Cook” is not a dietician or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories can vary quite a bit depending on which brands were used.
I think I would have preferred unsalted butter for the filling, otherwise great!
Just had to come here and say, I’ve made this recipe several times since you posted it several years ago. It’s SOOO good! My son just requested these instead of a cake for his birthday so here I am making them again. Thank you!
I am so glad you left a comment Trish! I love hearing when a recipe becomes a favorite. It truly makes my day!! I am absolutely tickled that your son requested these instead of a cake! Ha!! So awesome!
What size brownie mix did you use? The 9×13 size or the 9×9 size?
Hi Heidi! I show the ounces for each box that you should use. Basically, you’ll get the standard brownie box for an 8×8 baking pan.
I want to tell you that I have a binder with all my favorite recipes and your recipes make up most of that binder! Thank you or all the time you put into your site.
Hi Brandie . . . . Just a quick question regarding the “cook/bake” time . . . Under one of the pictures it says to bake 35 to 40 minutes but on the actual recipe header it says that the cook time is 25 minutes and in the actual verbiage of the recipe it also says 35 to 40 minutes. I have them in the oven right now ???????????????? so i am just going to keep an eye out. I just wanted to mention it. Also, to say I LOVE your recipes/blog, etc. would be a humongous understatement !!!!!!!!!!! Thank you for your time & talents. Linda, Whitefish, MT
Hi Linda! Good catch – thank you! I got it corrected. Thanks for your sweet note! These brownies may be a bit messy but we love them! Hope you do too!
Wow these look so sinfully delicious, I know my girls will love them! So glad I found your site, I’m gonna have to double up on the workouts lol. Thank you for so much awesomeness! (I’m waiting on your ziti recipe to come out of the oven as we speak!)
I just came across this post (how did I miss it before???) and now here I am in the wee hours of morning craving these. I’m gonna have to pick up some marshmallow fluff tommorrow or figure out how to make some from scratch ’cause these are going to be made PRONTO!
Made them ahead of time. How should I store them; in refrigerator or room temperature ?
Hi Lynn! I would store them in the fridge 🙂
Thank you! Have a Blessed Christmas!
These do look absolutely amazing! I love anything chocolaty and full of creamy frosting…. and a little mess makes it all the better! Have a great weekend.
This sounds like a great recipe
Hi!Been following you for about a year now,and we have enjoyed many of your always yummy,down Home recipes!Now,YEA!SUZY Q BROWNIES!!????!Recently,I bought a box of what was a childhood treat.And,WHAT THE WHAT?!????Suckfest city!!Were really small,dry,barely any of the creamy stuff.Traumatizing to say the least.So Thanks so very much.AND ,another YAY,for boxed mix.Best Wishes Always!
Right?! Ha! Glad it wasn’t just us that thought so! You are so funny!! Hope you love these – don’t forget to lick your fingers when some of that frosting squirts out 😉
Yeh Baby! I think you nailed it with this easy drool-worthy recipe. So glad you shared. Pinned!!
Thanks so much Mrs. B! (hugs)
Thank you for sharing this recipe! I absolutely LOVED those little snacks! Yes, even though they are back they are NOT the same. This recipe looks to be a real winner. Now I have to get to the store and buy the brownie mix ASAP!
I really enjoy your newsletter and all the good recipes you share, so a big thank you for all the hard work you do in posting the newsletter and the pictures are absolutely fantastic.
Hi Claudine! You warmed my heart on this cold day! I can’t thank you enough for taking the time to leave me such a sweet note!!!