The Sparkplug cocktail is like your favorite iced coffee with a little kick—it’s creamy, sweet, and just the right amount of boozy. It’s the kind of drink that perks you up and winds you down at the same time. I thought I’d share one of my favorite after-dinner cocktails—it’s smooth, comforting, and has just enough caffeine to keep the conversation going. Whether you’re winding down after a long day or hosting brunch with friends, this one always hits the spot.
Sparkplug
Ingredients
Servings: 1 drink
Prep time: 5 minutes
– 1 oz (30 ml) freshly brewed espresso, cooled
– 1 oz (30 ml) Irish cream liqueur
– 1 oz (30 ml) vodka
– ½ oz (15 ml) simple syrup (adjust to taste)
– 1 cup (240 ml) ice, plus more for serving
Glassware: Rocks glass or highball glass
Equipment: Cocktail shaker, strainer, espresso maker or coffee maker
Method
- Brew a shot of espresso and let it cool slightly. Fresh espresso makes a big difference here—it gives the drink that rich, bold base.
- Fill a cocktail shaker about halfway with ice.
- Pour in the cooled espresso, Irish cream liqueur, vodka, and simple syrup.
- Put the lid on and shake well—about 15 seconds. You want everything cold and nicely mixed.
- Fill your glass with fresh ice, then strain the drink over the top.
That’s it! You’ll end up with a smooth, lightly creamy cocktail with a gentle coffee buzz and a little warmth from the vodka.
Make-Ahead Tips
You can brew the espresso and chill it ahead of time—just store it in the fridge for up to a day. If you’re making these for a group, mix a batch (without ice) and keep it chilled. Just shake with ice right before serving to keep that fresh texture.
Storage
This drink is best enjoyed fresh. If you do prep a batch ahead, keep it sealed in the fridge for up to 24 hours. Don’t add ice until you’re ready to serve, or it’ll water down.
Serving Suggestions
This has been my go-to cocktail for summer nights on the porch. It pairs beautifully with:
– Fudgy brownies or chocolate mousse—the coffee and cream flavors balance rich chocolate so well
– A creamy cheese board (think brie, goat cheese, or camembert)
– Classic brunch dishes like French toast, pancakes, or even eggs Benedict
Tips & Tricks
– Use fresh espresso if you can—it gives the drink that deep, smooth flavor. If you don’t have an espresso machine, strong brewed coffee or cold brew works too.
– Shake vigorously to get that slightly frothy, well-blended finish.
– Want it less sweet? Cut the simple syrup in half or swap in agave syrup for a more subtle sweetness.
– No Irish cream? Try another cream liqueur like Amarula or even a splash of heavy cream and a little extra syrup.
Variations
Mocha Sparkplug
– Swap Irish cream for chocolate liqueur
– Add a splash of milk for extra creaminess
Vanilla Sparkplug
– Use vanilla vodka instead of plain
– Keep the Irish cream for that smooth base
Mint Sparkplug
– Add a dash of mint liqueur
– Finish with a splash of cream for a cooling twist
Non-Alcoholic Sparkplug
– Skip the vodka and liqueur
– Use extra espresso or cold brew and a splash of milk or non-dairy creamer
Substitutions
– No espresso? Use 2 oz (60 ml) cold brew or strong brewed coffee
– No simple syrup? Mix equal parts sugar and hot water until dissolved, or use honey or agave
– No vodka? Try white rum for a slightly different flavor
Common Pitfalls to Avoid
– Don’t skip chilling the espresso—it can melt the ice too quickly and water down the drink
– Avoid over-shaking if using cream-based liqueurs—they can get too foamy
– Be careful not to oversweeten—taste before adding the full amount of syrup
Frequently Asked Questions
When’s the best time to enjoy a Sparkplug?
It’s perfect for brunch, afternoon pick-me-ups, or as a dessert cocktail. Think of it as an adult iced coffee.
Can I make it alcohol-free?
Absolutely. Just skip the alcohol and add more coffee and a splash of cream.
How do I make it less sweet?
Cut back on the simple syrup or use a natural sweetener like agave or honey.
Can I use regular coffee instead of espresso?
Yes, just make it strong! Cold brew works really well too.
Can I batch this for a party?
Yes! Multiply the ingredients and mix everything (except ice) in a pitcher. Shake individual servings with ice before pouring.
Final Thoughts
The Sparkplug is one of those cocktails that feels familiar and indulgent at the same time. It’s easy to make, easy to customize, and always a hit—especially with coffee lovers. Whether you’re serving it with brunch, after dinner, or just because, it’s a simple way to add a little buzz to your day.
