
This refreshing Shamrock Soda Float combines the cooling sensation of mint with the fizzy delight of club soda for a perfect treat any time of year. Though especially popular around St. Patrick's Day, this minty green float brings a smile to faces year-round with its vibrant color and indulgent taste.
I first created this float for my children during a St. Patrick's Day celebration, and now they request it whenever they need a special pick me up. The combination of cool mint and fizzy bubbles creates an experience that's both nostalgic and refreshing.
Ingredients
- Peppermint Syrup: 3–4 tablespoons provide the distinctive mint flavor and beautiful green color
- Mint Chip Ice Cream: 2–3 scoops, the star ingredient with its creamy texture and chocolate specks
- Club Soda: 8 ounces create the magical fizzy effect that makes this a true float
- Whipped Cream: adds a cloud-like topping that melts slightly into the drink
- Maraschino Cherry: the perfect finishing touch that adds a pop of color contrast
Step-by-Step Instructions
- Build The Base:
- Pour the peppermint syrup into the bottom of a 16oz glass. This creates the foundation of flavor and that beautiful green color throughout the float. Use more for a stronger mint flavor or less for a subtler taste.
- Add The Ice Cream:
- Gently place 2–3 scoops of mint chip ice cream into the glass. The ice cream will begin to interact with the syrup, creating beautiful swirls of green. Use a long spoon to nestle the ice cream properly into the glass.
- Create The Fizz:
- Slowly pour the club soda along the inside edge of the glass to preserve as much carbonation as possible. Watch as the soda creates a magical reaction with the ice cream, causing it to float and bubble.
- Garnish For Beauty:
- Top with an additional scoop of ice cream or a generous swirl of whipped cream. Place a bright red maraschino cherry on top for that classic float appearance. The contrast of colors makes this treat especially appealing.

My children's faces light up every time I make this float. The way the ice cream slowly melts into the soda creating ribbons of mint flavor throughout the drink is truly magical. Even my husband, who doesn't typically enjoy sweets, finds this refreshing treat irresistible.
Make Ahead Options
While the Shamrock Soda Float is best enjoyed immediately after preparation, you can prepare elements ahead of time for quick assembly. Store peppermint syrup in an airtight container in the refrigerator for up to two weeks. For parties, pre-scoop ice cream balls onto a parchment-lined tray and freeze until needed. This allows for quick assembly when guests arrive, ensuring everyone gets the perfect fizzy experience.
Variations To Try
Transform this basic recipe in countless ways by switching up key ingredients. Replace mint chip ice cream with vanilla and add green food coloring to the syrup for a smoother flavor profile. For chocolate lovers, try chocolate ice cream with the peppermint syrup for a mint chocolate float. During summer months, add a handful of fresh mint leaves muddled with the syrup for a brighter, more herbaceous flavor that feels garden fresh.

Serving Suggestions
Serve these floats in clear glasses to showcase the beautiful layers and colors. Provide long spoons and wide straws so guests can enjoy both the liquid and ice cream components. For an extra special presentation, rim glasses with crushed chocolate cookies or green sugar crystals. These floats pair wonderfully with shortbread cookies or chocolate brownies for a complete dessert experience.
Frequently Asked Questions
- → Can I use different ice cream flavors for this float?
Yes! While mint chip ice cream gives the authentic shamrock flavor and color, you can substitute vanilla ice cream with a few drops of green food coloring and mint extract, or try other flavors like chocolate chip for a different twist.
- → What can I substitute for peppermint syrup?
If you don't have peppermint syrup, you can use creme de menthe (alcoholic or non-alcoholic versions), mint simple syrup, or even dissolve mint candies in hot water to create a syrup. Adjust quantities to taste.
- → How do I make this float alcohol-friendly for adults?
To create an adult version, add 1-2 oz of Irish cream liqueur, creme de menthe, or Irish whiskey before adding the club soda. This creates a festive cocktail perfect for St. Patrick's Day celebrations.
- → Can I prepare components of this float ahead of time?
You can pre-measure the peppermint syrup and keep it refrigerated, but for best results, assemble the float just before serving. Pre-assembled floats will lose carbonation and the ice cream will melt too quickly.
- → What makes the float turn green?
The green color comes primarily from the mint chip ice cream and peppermint syrup. If your version isn't green enough, you can add a drop or two of green food coloring to enhance the shamrock appearance.
- → What can I use instead of club soda?
Sprite or 7-Up will add additional sweetness, while ginger ale adds a nice complementary flavor. For a completely different twist, try using cream soda or even root beer for unique flavor combinations.