There are few things better on a hot summer day than a root beer float! I mean, what could be better…? How ’bout this: an alcoholic root beer float! It’s a fun twist on an old favorite, combining three of my favorite things: good root beer, vanilla bean ice cream, and vanilla vodka.

an alcoholic root beer float in a clear glass with a handle.

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When summer is in full swing, I love to mix up my cocktail game with a cold, refreshing alcoholic root beer float! This is one of my favorite summertime treats: so simple, so tasty. 

What’s in This Alcoholic Root Beer Float Recipe?

  • Vanilla Vodka: I like Smirnoff. It’s smooth and clean tasting. Whipped cream-flavored vodka would also work well.
  • Vanilla Ice Cream: Use your favorite brand, and if you can get vanilla bean, go for it!
  • Root Beer: Everybody will have their own thoughts on this, but my favorite root beer brand has always been IBC. My dad used to buy it by the case and swear, there was no better root beer in America. I have tried many different types and have never found one I like better. This drink will work with whatever your favorite type is, so try to locate whichever brand brings back the best memories.
2 alcoholic root beer floats in tall clear glasses with handles with paper straws.
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Tips for Success

  • Serve with a straw and a spoon!
  • Pour the root beer slowly at an angle to reduce fizz and the risk of overflow.
  • Start with two scoops, but you can use more if you prefer to enjoy your floats with a spoon instead of a straw.
  • Put mugs in the freezer for 30 minutes before serving time for frosted glasses.
  • Top with whipped cream and a cherry.
three-quarters view of an alcoholic root beer float in a tall clear glass with a handle with a cherry on top.

Serving Suggestions

Enjoy this creamy, boozy root beer float with classic diner dishes, like burgers, chicken sandwiches, french fries, or chili dogs.

They’re super refreshing on a hot day paired with barbecue staples, like grilled chicken, St. Louis ribs, or pulled pork. Or, sate your sweet tooth by pairing them with a slice of New York cheesecake or cherry pie!

Recipe Card

Alcoholic Root Beer Float

4.75 from 24 votes
Prep: 5 minutes
Total: 5 minutes
Servings: 1 float
Author: Becky Hardin
featured alcoholic root beer float.
Root beer over vanilla ice cream is a classic dessert–just add vodka to turn this into a Root Beer Float cocktail!
Step-by-step photos can be seen below the recipe card.
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Ingredients 

  • 4 ounces vanilla ice cream (¼ pint)
  • 8 ounces root beer IBC recommended (¾ bottle)
  • ounces vanilla vodka Smirnoff recommended (1 shot)

Instructions 

  • Place 2-3 scoops of vanilla ice cream into a tall glass.
    4 ounces vanilla ice cream
    2 scoops of vanilla ice cream added to a clear glass.
  • Fill halfway up with root beer.
    8 ounces root beer
    root beer poured over vanilla ice cream in clear glasses.
  • Pour 1 shot of vanilla vodka, and then top with root beer to fill to the top of the glass.
    1½ ounces vanilla vodka

Video

Becky’s Tips

  • Try changing up the alcohol by swapping in whipped cream-flavored vodka, dark rum, Bailey’s, or Kahlua. You could even swap the root beer for a hard root beer!
  • Swap the vanilla ice cream for your favorite flavor, like butter pecan, chocolate, or cherry! You can even swap the root beer for your favorite soda, like Coke, Pepsi, orange soda, or cream soda.
  • Nutritional information will vary depending on the size of the mug, the brand of ice cream, and the size of your ice cream scoop. This recipe assumed a 1.3-ounce scoop, which is the average size.  Learn more here. The brand of ice cream used in this recipe contains 59 calories per ounce.
Serving: 1floatCalories: 426kcalCarbohydrates: 51gProtein: 4gFat: 12gSaturated Fat: 8gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gCholesterol: 50mgSodium: 121mgPotassium: 228mgFiber: 1gSugar: 48gVitamin A: 477IUVitamin C: 1mgCalcium: 156mgIron: 0.2mg

Nutrition information is automatically calculated, so should only be used as an approximation.

Did you make this? Leave a comment!

How to Make an Alcoholic Root Beer Float Step by Step

Scoop the Ice Cream: Place 2-3 scoops (about 4 ounces) of vanilla ice cream into a tall glass.

2 scoops of vanilla ice cream added to a clear glass.

Make the Float: Fill halfway up with 4 ounces of root beer. Pour 1 shot (1½ ounces) of vanilla vodka, and then top with the remaining 4 ounces of root beer to fill to the top of the glass.

root beer poured over vanilla ice cream in clear glasses.

More Spiked Drink Recipes To Try

Meet Becky Hardin

Becky Hardin is a wife and mother living in Saint Louis Missouri. She founded The Cookie Rookie in 2012 as a creative way to share recipes. Now, she is a trusted resource for easy cooking around the world, being featured in Taste of Home, The Kitchn, ABC’s Home and Family, and more. Here at The Cookie Rookie she is the editor in chief of all recipes and continues to enjoy sharing her passion for cooking for busy families. She has since founded two additional food blogs, Easy Chicken Recipes and Easy Dessert Recipes.

4.75 from 24 votes (23 ratings without comment)
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11 Comments
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Eric
Eric
December 19, 2020 10:22 pm

I love IBC as well. For those that want a less subtle bubbly root beer, maybe an off brand. I think as far as mixing it up, because of the foam forming after pouring in the root beer with ice cream, pour root bear or vodka first, then add ice cream then of course more root beer. I found that if you add ice cream then root beer then vodka, the vodka tends to stay in the foam. But hey trial and error right? Over all, amazing and very good.4 stars

Becky Hardin
Becky Hardin
December 21, 2020 4:04 pm
Reply to  Eric

Thanks for sharing with us, Eric!

Joe S
Joe S
April 26, 2014 9:43 am

IBC is good but try Frostie Root Beer… exceptional

becky gall hardin
becky gall hardin
April 27, 2014 5:31 pm
Reply to  Joe S

i’ve never tried that! i’ll have to look it up and give it a try!

Christine
Christine
May 11, 2014 11:20 am

What are the measurements of everything?

becky gall hardin
becky gall hardin
May 12, 2014 9:05 am
Reply to  Christine

Hey Christine-
They are listed in the instructions section of the recipe card. Thanks for stopping by!

Danielle @ TheBestDessertRecipes.com
Danielle @ TheBestDessertRecipes.com
April 21, 2014 5:03 pm

This looks SO good. I know what I’m having for dessert tonight. Thanks for the idea!

becky gall hardin
becky gall hardin
April 21, 2014 10:03 pm

Yay! Hope you loved it :)

Jen
Jen
April 12, 2014 9:20 am

I am excited for it to be spring/summer and warm enough for root beer floats! These look delicious!!!

Joanne T Ferguson (@mickeydownunder)
Joanne T Ferguson (@mickeydownunder)
April 12, 2014 4:34 am

G’day! ove root beer! Brings me back to childhood!
Cheers! Joanne

Meg @ The Housewife in Training Files
Meg @ The Housewife in Training Files
April 11, 2014 7:04 am

Ohhhhhh I LOVE root beer floats….and add a touch of vodka and you win me over even more! Pinned!