Root Beer Float
intro
A frothy, nostalgic American soda fountain treat pairing bubbly cold root beer with creamy vanilla ice cream, perfect for cooling down at warm weather gatherings.
Ingredients
Steps
Prechill Tall Soda Glasses
Place 4 tall 16-oz (473 ml) clear soda glasses in the freezer on a flat shelf for 15 minutes to chill thoroughly; pre-chilling prevents fast ice cream melt and reduces fizz overflow during assembly.
Add First Ice Cream Scoop
Remove chilled glasses from the freezer, and scoop one firm 1/2 cup (65 gram) scoop of vanilla ice cream into the bottom of each glass, pressing gently with the back of the scoop to create a tight seal across the glass base to slow the initial fizz reaction.
Pour First Root Beer Slowly
Tilt each glass at a strict 45-degree angle, and slowly pour 120 ml (1/2 cup) of ice-cold root beer down the inner sloped side of the glass over 10 full seconds per glass; pouring slowly at an angle cuts down on rapid, messy overflow as the soda fizzes against the cold ice cream.
Add Second Ice Cream Scoop
Wait 30 seconds for the initial bubbly fizz from the first root beer pour to fully settle, then add a second 1/2 cup (65 gram) scoop of firm vanilla ice cream on top of the foamy root beer layer in each glass, letting the rounded top of the scoop sit partially above the glass rim for classic presentation.
Pour Remaining Root Beer Slowly
Keep each glass tilted at 45 degrees, and slowly pour the remaining 120 ml (1/2 cup) of root beer over the top ice cream scoop over 10 seconds per glass, stopping when the liquid level sits 1 inch below the glass rim, topped with a 1/2-inch thick layer of light, bubbly tan froth.
Garnish and Serve Floats
Top each float with 2 tablespoons (15 grams) of sweetened whipped cream dolloped in the center of the top ice cream scoop, set 1 drained maraschino cherry on the center of the whipped cream, and serve immediately with a long-handled soda spoon and a striped paper straw.
Tips
2.If foam rises too close to the glass rim during pouring, pause for 10 seconds and blow gently across the top of the foam; the carbon dioxide bubbles will break quickly to prevent sticky spills without ruining the float texture.
3.For the best texture, use firm, fully frozen premium ice cream instead of soft-serve or partially melted ice cream; softer ice cream melts too quickly, turning the float watery instead of thick and creamy.

OMG, I made these for my kid’s end-of-summer pool party and they were a total hit! I followed the tip to chill the mugs first and it kept the ice cream from melting too fast, even in 90 degree heat. SO good, every last kid (and most of the parents!) asked for seconds. Game changer for easy party treats.
Perfect lazy Sunday treat! I used diet root beer and vanilla bean ice cream and it tasted exactly like the floats I got at the old soda fountain when I was a kid. Took me less than 10 minutes total to whip up two of them, no fancy ingredients, zero stress, 10/10.
Wait, mine fizzed over everywhere when I poured the root beer! I ended up with sticky soda all over my counter, oops. Tasted amazing once I cleaned up the mess though, my toddlers devoured theirs. Any tip to cut down on the overflow?
Brought these to our neighborhood block party potluck last weekend and people were talking about them for days! I set up a little float station with different ice cream flavors (vanilla, chocolate, even salted caramel) and a bunch of toppings so people could customize. Way easier than baking a whole dessert, will 100% be doing this again for our fall tailgate.
I added a tiny shot of cold brew to my float last night and oh my GOD, it was chef’s kiss. The bitter coffee cuts the sweetness of the root beer and ice cream so nicely, I can’t believe I never tried that before. Total grown-up twist on the classic!
Made these after a long hot hike with my partner yesterday and they hit so different. Cold, creamy, bubbly, exactly what we needed to cool down. Way better than stopping for fast food milkshakes on the way home.
I’m literally terrible in the kitchen, like I burn toast half the time, but this was so easy I actually pulled it off! My girlfriend thought I ordered takeout from the old soda shop downtown, I felt so proud. 10/10 for people who can’t cook to save their lives.
So happy this recipe is naturally gluten free! My son has celiac and so many fun summer treats have hidden gluten, but I could make this with totally safe ingredients for him. He said it’s the best dessert he’s had all summer, I almost cried.
I splurged on that small-batch craft root beer from the local farmers market instead of the grocery store brand and it elevated this so much. Tasted like a fancy restaurant dessert for like $2 a serving. Will never go back to cheap soda for floats again.
Made this in my dorm room with a mini fridge and a plastic cup, no fancy equipment needed. Perfect late night study snack when I’m pulling an all-nighter for midterms, way cheaper than ordering Uber Eats.
Made these for my grandkids when they visited last weekend, and I accidentally used mint chocolate chip ice cream instead of vanilla by mistake. Turns out, root beer and mint chocolate chip are SO good together? We all went back for seconds, even my picky 7 year old granddaughter. Happy accident!