Boston Cooler
intro
A nostalgic, fizzy American soda fountain classic pairing spicy golden ginger ale with rich vanilla ice cream for a creamy, refreshing cold summer treat.
Ingredients
Steps
Chill serving glasses
No heat required for this recipe: Place 4 tall 16-oz (473 ml) Collins glasses in the freezer (set to -18°C / 0°F) for 10 minutes to chill thoroughly, so the drink stays cold longer without rapid melting. Do not use warm glasses, as this will melt the ice cream too quickly and make the drink watery.
Add ice cream to glasses
Keep work area at cool room temperature (20°C / 68°F, no stovetop heat needed): Remove the chilled glasses from the freezer. Scoop 1 cup (150 grams) of firm premium vanilla bean ice cream into the bottom of each glass, packing it gently to leave 2 inches of headspace at the top of each glass for fizz expansion. Avoid using softened, partially melted ice cream for this step, as it will create a watery final drink.
Pour initial ginger ale
No heat applied: Slowly pour 120 ml (½ cup) of ice-cold (4°C / 39°F) ginger ale over the ice cream in each glass, tilting the glass at a 45-degree angle to reduce excess fizz buildup. Let the mixture rest for 30 seconds as the initial fizz rises and settles, forming a thin creamy foam layer on top.
Gently blend base layer
No heat used during mixing: Insert a long-handled metal soda spoon into each glass, and press the ice cream very gently against the glass side 2 to 3 times to slightly blend it with the ginger ale, creating a thick slushy consistency at the glass bottom. Do not fully stir the ice cream into the soda, as this will eliminate the signature textural contrast between creamy ice cream and fizzy soda.
Top with remaining soda
No heat applied: Pour the remaining 60 ml (¼ cup) of cold (4°C / 39°F) ginger ale into each glass, holding the glass straight upright this time to build a 1-inch thick, frothy creamy head that rises just level with the glass rim. Do not overpour, as carbonation will expand the foam and cause messy spills.
Garnish and serve immediately
No heat needed for serving: Place a long striped paper straw and an iced tea spoon in each glass, and add one thin candied ginger slice to the glass rim for extra spicy aroma if using. Serve within 1 minute of preparation to enjoy the ideal balance of fizzy cold soda and firm, creamy ice cream before it melts into a thin shake.
Tips
2.For the most authentic, traditional flavor, use aged Vernors golden ginger ale—the spicier, less sweet original ginger ale used when the drink was created at 19th century Detroit soda fountains—rather than mild, modern sweet ginger ale brands.
3.Never over-stir the drink: the classic Boston Cooler has distinct textural layers of firm ice cream, slushy cream-soda blend, and crisp fizzy soda, rather than a uniformly mixed thin milkshake consistency.
OMG I haven’t had a Boston Cooler since I was a kid visiting my grandma in Toledo! This recipe is so spot on, I used extra creamy vanilla bean ice cream and it tasted exactly like I remembered. My kids went crazy for them after our backyard cookout last weekend, total game changer for hot summer days.
Made these for our neighborhood block party potluck and they were a huge hit! Only reason I’m knocking off a star is I wish the recipe noted that you can adjust the ice cream to soda ratio for people who like it thicker or thinner. Ended up adding an extra scoop for half the crew and everyone was happy.
SO good! I threw a little dash of ground cinnamon on top for extra warmth and it was chef’s kiss. My kids loved it, and it was so easy to throw together last minute when their friends showed up unannounced after the pool — no fancy ingredients needed. Will be making these all summer long!
Wait I always thought Boston Coolers had rum in them? Made this non-alcoholic version for our family movie night and even my picky 7 year old asked for seconds. The frothy texture is unreal, way better than the fast food floats we usually get.
Tried this after a long hike yesterday and it was super refreshing, but I used diet ginger ale because that’s all I had and it had that weird artificial aftertaste. Bummer, I bet it’s way better with regular.
15 minutes is no joke, this took me literally 2 minutes to throw together between study sessions. I keep vanilla ice cream in my freezer and ginger ale in my fridge now for when I need a little pick-me-up during finals week. Way cheaper than buying fancy coffee drinks when I’m pulling all nighters!
Just made these for my husband’s birthday cookout and he said they’re better than the ones he got at the old soda fountain when he was a kid! I used the fancy small-batch ginger ale from our local farmers market and it gave it such a nice spicy kick. Can’t wait to make these for our 4th of July party.
Super easy recipe, just a heads up for anyone meal prepping for a party – don’t mix these ahead of time! I tried pre-scooping ice cream into cups and pouring the soda when guests arrived which worked great, but when I mixed them an hour early they went totally flat and turned into a weird soupy mess.
Made this with dairy-free vanilla oat milk ice cream and it was so good! The only issue was the oat milk ice cream melted a little faster than regular, so I had to drink it pretty quick. Would definitely make again though, perfect cool treat for this heat wave we’re having.
My daughter’s 8U soccer team went absolutely wild for these after our game today! I brought a cooler of ginger ale and a tub of ice cream, mixed them up in disposable cups on the sidelines and every single kid asked for a refill. Even the other parents were asking for the recipe, total home run!
I’ve been chasing the perfect Boston Cooler recipe for years after having one at a vintage soda pop festival a few years back, and this is IT! The ratio of ice cream to ginger ale is exactly right, not too thick, not too runny, perfect amount of fizz. 10/10, no notes.