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Root Beer Float Cake Recipe

Root Beer Float Cake Recipe

I add root beer to both the cake batter and fluffy frosting of this summery dessert to get that great root beer float taste. Serve this moist cake to a bunch of hungry kids and watch it disappear! —Kat Thompson, Prineville, Oregon
TOTAL TIME: Prep: 15 min. Bake: 30 min. + cooling YIELD:12-15 servings


  • 1 package white cake mix (regular size)
  • 1-3/4 cups cold root beer, divided
  • 1/4 cup canola oil
  • 2 large eggs
  • 1 envelope whipped topping mix (Dream Whip)


  • 1. In a large bowl, combine cake mix, 1-1/4 cups root beer, oil and eggs. Beat on low speed for 2 minutes or stir by hand for 3 minutes.
  • 2. Pour into a greased 13x9-in. baking pan. Bake at 350° for 30-35 minutes or until a toothpick inserted near the center comes out clean. Cool completely on a wire rack.
  • 3. In a small bowl, combine the whipped topping mix and remaining root beer. Beat until soft peaks form. Frost cake. Store in the refrigerator. Yield: 12-15 servings.

Nutritional Facts

1 piece: 203 calories, 8g fat (2g saturated fat), 27mg cholesterol, 216mg sodium, 31g carbohydrate (19g sugars, 0 fiber), 2g protein.

Reviews for Root Beer Float Cake

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ccanino User ID: 8910882 252521
Reviewed Aug. 11, 2016

"This is a favorite of my daughter even now that she is 19. LOL! We like to use 2 envelope whipped topping mix. Also, I noticed that the higher quality the Root Beer the better this recipe."

Suelon User ID: 269823 250185
Reviewed Jul. 7, 2016

"First time followed recipe and no flavor. Tried again using the root beer concentrate as well in cake /frosting and MUCH better! Will make again and add even MORE concentrate (3-4 tsp) and think it will be perfect then! Luv2craftginny- cannot see why you could not use diet root beer"

luv2craftginny User ID: 3900103 249864
Reviewed Jun. 28, 2016

"question can you use diet root beer"

peanutsnona76 User ID: 8027573 248653
Reviewed May. 26, 2016 Edited Apr. 4, 2017

"Really nice cake-used root beer concentrate after reading reviews."

ryanswife User ID: 2152282 246409
Reviewed Apr. 1, 2016

"I really liked this cake. It turned out good. My husband usually likes only chocolate things, so he wasn't impressed. I tried this because I'm sick of only making chocolate. I will make it again just for something different."

horselady55 User ID: 7718723 243139
Reviewed Feb. 3, 2016

"I made this for my granddaughter's birthday. Oh My Gosh, how sad! It wasn't very good. :( She loves root beer. We couldn't hardly taste the root beer. She was sooooo disappointed. Very Sad."

pauleywog User ID: 3278726 235582
Reviewed Oct. 25, 2015

"I added a little Root Beer flavoring to cake batter and frosting. Turned out good."

patdrake User ID: 7651993 231926
Reviewed Aug. 28, 2015

"won't be making this again. I had planned it for my 11 year old grandson's birthday and it BOMBED. just tasted like plain old cake. very disappointed."

dawnrosanne User ID: 1014810 231587
Reviewed Aug. 22, 2015

"Really disappointed. It did not taste like root beer at all. It was still a good cake, but just tasted like a regular yellow cake."

Water4Chocolate User ID: 7962831 230858
Reviewed Aug. 7, 2015

"This is not a review yet, but a comment and a thank you to all that contribute here! Many mentioned using root beer and Dr. Pepper in chocolate boxed cake. My recipes from the 80's used a coke in chocolate or fudge cake mix--they always came out so dry that I never used the recipe again. I'm so glad for to see this recipe today and your helpful ideas! I LOVE root beer flavor and look forward to making this recipe using R-B concentrate with the white or yellow cake mix. Also I'm thinking about using root beer (Barq's!) to enhance the flavor of Spice cake mix too. Thanks again!"

dawilson2011 User ID: 8384040 228157
Reviewed Jun. 18, 2015

"I put more root beer into the cake and the icing and still could not taste it. Won' make it"

learningandlovingtocook User ID: 8289322 226555
Reviewed May. 18, 2015

"We love root beer, so I tried this. I kept increasing the amount of root beer in the cake mix and the topping, but it really did not taste like root beer. However, it was one of the most delicious, moist and fluffy cakes I have ever eaten. People thought it was angel food it was so fluffly."

latham0114 User ID: 7924420 221426
Reviewed Feb. 26, 2015

"It was good, I hate root beer, so for me to know it tasted good should tell you how much root beer you could actually taste in it.

I'm not impressed that you couldn't really taste the root beer at all. I made it for my husband who loves root beer. Kinda made the prep time Unnecessary since the root beer can't be tasted."

[email protected] User ID: 2450288 216392
Reviewed Dec. 30, 2014

"This was a very good cake but I also added root beer concentrate. Not extract - you can find the concentrate at WalMart. I happened to have some on hand because I had found and made a root beer fudge that called for the concentrate. This gave more root beer flavor than just the soda added to the cake. I also added just a little to the frosting too."

Ballerina1234 User ID: 8011377 69656
Reviewed Nov. 28, 2014

"I made this cake yesterday for Thanksgiving. It was a big hit! but I used 2 Dream Whip packets and 2/4 cups of root beer to frost it. Very good!"

delowenstein User ID: 3766053 26985
Reviewed Mar. 17, 2014 Edited Apr. 4, 2017

"I used 1-1/4 cups A & W root beer in the cake. I used a can of whipped fluffy white icing and added just enough root beer to make the icing spreadable, yet not runny! I think that it's possible that the cake would have to mature a tad before serving it! I recall making that Dr. Pepper cake from the Recipes Across America cookbook which had called for a chocolate cake mix! This root beer float cake recipe just may be a recipe I'll use again!"

JaniceBaer User ID: 1723673 32220
Reviewed Mar. 17, 2014

"Was very good, and I don't even like root beer. I made it cause my husband and son love root beer. I would definitely make it again."

harleygma User ID: 4229313 78750
Reviewed Aug. 6, 2013

"Very moist and good. I wouldn't use a cheap brand of root beer. Will make again"

pa3.14ya User ID: 6931255 41311
Reviewed May. 12, 2013

"We made a low(er) cal/fat version, using diet root beer, Cool Whip Free, and applesauce instead of oil. It was delicious and nearly guilt-free! :)"

saralyn_06 User ID: 993350 73731
Reviewed May. 11, 2013

"No one could taste the root beer."

Jennie78 User ID: 7219822 78749
Reviewed Apr. 10, 2013

"I love root beer and was so excited to try this recipe. However, I disappointed because I followed the recipe exactly, but it did not taste like root beer AT ALL. Only after I told everyone that it was supposed to be root beer flavored, they said, "Oh yeah, I THINK I can taste a little bit of root beer."

The "frosting" did taste a little bit like the foam of a root beer float when I first made it. However, after several hours in the refrigerator when I ate another piece, it had lost that flavor, too.
Also, I did need to use both envelopes of the Dream Whip in order to cover the top of the cake.
Although it did not taste like root beer, it was a very good tasting PLAIN cake...very moist.
So I would probably make it again as a regular cake, but definitely would not call it a root beer float cake.
If I added more root beer to the cake batter would it be too liquid-y? I really would love to find a recipe that actually does tase like root beer cake."

pams2cook User ID: 5282254 27704
Reviewed Apr. 8, 2013

"My 9 year old grandsons made this yesterday for their pappaw's birthday...It turned out great. The cake is very light and moist and the icing was fabulous. My recipe though calls for three egg whites instead of 2 eggs..We will definitely make this cake again!"

igobykat81 User ID: 3808680 30347
Reviewed Mar. 14, 2013

"After making the in heaven..the foamey part of the float is my fave...the topping is darn close to the float foam ; ) (also added a 1/2-3/4 tsp of homemade rootbeer concentrate.   I am sure my daughter's Kindergarten classmates will enjoy these to celebrate her 6th Birthday!"

igobykat81 User ID: 3808680 203592
Reviewed Mar. 14, 2013

"I followed the directions in the recipe not the box, it is very light and airy. I did not have any rootbeer concentrate, so I condensed about 1 cup of soda, + touch of pure vanilla, on med-low..I added that to the batter and it kicked it up a notch ; )"

watermelonmuffin User ID: 6735434 30342
Reviewed Feb. 19, 2013

"you should put some root beer extract in if you can't taste the root beer enough. just an idea :)"

kristinfb User ID: 7129316 85438
Reviewed Feb. 8, 2013

"Do you mix the cake mix just as the box tell's you too or just what you have on here for the ingredients?"

ellimaye1 User ID: 1179808 76002
Reviewed May. 20, 2012

"Flavor is subtle but yummy. The frosting is very good."

jorierogers2010 User ID: 5167805 52742
Reviewed Dec. 22, 2011

"This cake was yummy, very moist, but we were all disappointed as to the lack of root beer taste. If I didn't tell them it was rootbeer, they wouldn't have known. Frosting was good, a stronger root beer flavor. I may try it again with strawberry pop. That sounds good!"

Edyne Jurai User ID: 3362583 73729
Reviewed Aug. 19, 2011

"Wonderfully tasty, moist and delicious with a wonderful root beer flavour, this cake is a surefire winner! I really enjoyed it when I made it and I will definitely make it again!

*I used a WAL-MART brand of root beer which tastes stronger than A&W but I don't mind because I like my root beer with a little bite! I'm going to try it with Barque's Root Beer next time!*"

MVPhelan User ID: 1073981 85415
Reviewed Jul. 1, 2011

"I love this cake! I think it's best when made a day or so before needed. I also add 1/4 to 1/2 tsp root beer concentrate to amp up the flavor. It's SO GOOD!"

jkjkjksend User ID: 5410512 22918
Reviewed Sep. 7, 2010

"this was really easy to make specially since I'm not very good at cooking. the cake was delicious. it was light and fluffy. it didnt really taste like root beer though. however the frosting had that root beer flavor but my frosting came out too runny. next time i would probably place the frosting in the fridge for a bit to help it thicken up. all in all its a very good receipt and i would make it again."

Kichler073 User ID: 32326 203591
Reviewed Aug. 31, 2010

"Got lots of compliments that the cake was very moist."

izymoe User ID: 4234381 52734
Reviewed Jul. 20, 2010

"I actually double the amount of "frosting" b/c I like a moist cake. My kids love it!!!"

dotty3 User ID: 3609801 73727
Reviewed Jul. 6, 2010

"Made this for the 4th of July. The kids and adults loved it! It is very easy to make. I used both envelopes of Dream Whip for the icing. One envelope was not enough."

deslauriers User ID: 3102206 85412
Reviewed Jun. 25, 2010

"I have done this a bunch of times, but try orange or strawberry soda!! I have even used grape, sure is a good treat on a hot summer day."

[email protected] User ID: 4127983 78740
Reviewed Jun. 25, 2010

"I made this cake the first time for my grandkids and they love it and the second was for Easter for a friend and they loved it and now my husband is asking for it."

mdsutton1 User ID: 3540984 41310
Reviewed Aug. 25, 2009

"Absolutely delicious! Sometimes I don't even make the frosting and just serve the cake straight out of the oven with a scoop of vanilla ice cream. YUM. :)"

cindee4 User ID: 1178922 39098
Reviewed Jul. 20, 2009

"My family really enjoys this cake, it's a winner!"

KScales User ID: 3262967 26982
Reviewed Jul. 20, 2009

"There was an error in the beating instructions for this cake. They should read: "Beat on low speed for 2 minutes or stir by hand for 3 minutes." Everything else is correct.

Sorry for any inconvenience and thank you for bringing it to our attention.
Taste of Home Test Kitchen"

WJSymons User ID: 2585705 27702
Reviewed Jan. 29, 2009

"This is a fun cake for kids to make; it tastes faintly like Root Beer. I prefer regular icing to the whipped topping mix, though."

MamaReed User ID: 281772 27700
Reviewed Jun. 30, 2008

"should this really beat on low for 30 minutes??"

red_savage1 User ID: 854436 52733
Reviewed Jun. 29, 2008

"A box of "Dream Whip" is what I buy. You get it in the baking area of your grocery store."

makeches User ID: 1932215 30340
Reviewed Jun. 29, 2008

"What is Whipped topping mix?"

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