Rosemary Collins Cocktail
The Rosemary Collins Cocktail marries a Tom Collins with rosemary simple syrup and it’s light, delightful, and a great warm weather sipper!

I have to admit, when I first made this Rosemary Collins Cocktail, it was for a holiday gathering; the rosemary seemed so appropriate. But I have since made other versions for the holidays and have enjoyed this version more during the warmer months when I have fresh rosemary in my garden.
It is VERY similar to a classic Tom Collins, but with a hint of rosemary it’s light and refreshing and perfect for a warm summer afternoon.
The truth is that a Rosemary Tom Collins is about as closely related to it’s cousin Tom as it could be…the same basic ingredients come together with the addition of a rosemary simple syrup and more rosemary as garnish.
But the taste is unique and I admit, I love both cocktails in the summer. It’s nice to be able to change up a summer mainstay with the Rosemary Collins version that is also light and easy to prepare.
That being said, the taste, while reminiscent, is totally different; you can’t deny the presence of rosemary. And it’s important that that it only be a gentle presence. Too much rosemary and it can become almost medicinal. When I first made these cocktails I used only a sprig as garnish and found myself not as satisfied; the rosemary simple syrup was key.

Still…it has to be a gentle process. There is no boiling for maximum extraction; simply put the herb into the simple syrup that has been brought off heat after the sugar has melted in the water. Let the herb steep for about 5 minutes before removing it from the simple syrup and putting the syrup into the fridge to cool off.
Something about the herbaceous quality of gin combined with rosemary and the freshness of lemon with a bit of sugar and this Rosemary Tom Collins has a great flavor I love. Add chilled bubbly water and it’s a wonderful thirst quencher and really does satisfy; perfect for a lazy summer afternoon or evening.
Keeping it lean? Try this one…after all no one said we had to take EVERYTHING fun out of our diet, right?
Cheers!
More Collins Cocktails?
- Tom Collins
- Blackberry Bourbon Collins
- Blackberry Collins Cocktail with St. Germain Liqueur
- Lemon Thyme Collins
PIN IT! ‘Rosemary Collins Cocktail’



Rosemary Collins
Ingredients
For Rosemary Simple Syrup
- ¼ cup water
- ¼ cup sugar
- 2 sprigs rosemary
For Cocktail
- ¼ cup gin
- 2 Tbsp Rosemary Simple Syrup
- 2 Tablespoons lemon juice
- Club Soda Chilled
For Garnish:
- 2 sprigs Rosemary
- Lemon Slices
Instructions
To Make Rosemary Simple Syrup
- Combine water and sugar in a saucepan and bring to a boil, turn off heat. Add rosemary sprig and submerge in syrup; let sit for 5-10 minutes, then discard rosemary and chill the syrup until ready to make the cocktails.
To Make the Cocktails
- Combine gin, rosemary simple syrup and lemon juice in an ice filled cocktail shaker; shake until thoroughly chilled.
- Pour over ice in two tall Collins glasses and top off each cocktail with chilled club soda.
- Garnish with a rosemary sprig and lemon slice.


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A beautifully named cocktail with a refreshing, aromatic twist. The rosemary adds a sophisticated herbal note that makes this drink feel both elegant and unique—perfect for a relaxed evening or a special gathering.
This Rosemary Collins sounds so refreshing! I can imagine sipping it on a hot day. Perfect for when I’m not busy playing Soflo Wheelie Life. Gotta try making that rosemary simple syrup!
This sounds absolutely lovely! I totally get the initial thought of rosemary for holidays, but shifting it to a warm weather sipper with fresh garden rosemary sounds even better. Love the idea of a classic Tom Collins getting such a refreshing, aromatic twist. Can’t wait to try it!
This Rosemary Collins sounds so refreshing! I can imagine sipping this on a hot day. The instructions seem straightforward enough, might give it a try this weekend.
This cocktail looks great! The aroma of rosemary must add flavor to the classic Tom Collins, and it is definitely a good idea to try it in the summer!
Love the Rosemary Collins Cocktail! Sounds so refreshing for summer.
The perfect drink for a long weekend! We have a growing rosemary plant in our house, and I had to use some anyway. So here we go.
The perfect drink for a long weekend! We have a growing rosemary plant in our house, and I had to use some anyway. So here we go.
I really appreciate your careful approach to making the Rosemary Tom Collins; letting the herb steep gently definitely preserves its delicate flavors. I once tried a similar method using lavender, and it created such a refreshing drink perfect for warm days.
Ah, the allure of a refreshing cocktail like Rosemary Collins! It takes me back to simpler days, full of nostalgia and the satisfaction of serving perfect slices at Papa’s Pizzeria. Craftsmanship and quality ingredients make all the difference.
This Rosemary Collins Cocktail sounds absolutely perfect for a warm evening! I love the idea of adding rosemary simple syrup to a classic Tom Collins. The tip about not overdoing the rosemary is great.
Wow, this rosemary collins looks super yummy! Love how you mix gin with rosemary, perfect for hot summer days! Can’t wait to try it!
This rosemary Collins cocktail sounds so refreshing! The aroma of rosemary paired with lemon and gin is simple and delicious, perfect for summer.
“What a lovely take on a classic cocktail! The Rosemary Collins sounds like the perfect blend of herbal freshness and timeless flavor. I especially appreciate how you noted its versatility—it’s fascinating how a holiday-inspired drink became your go-to summer sip. The rosemary simple syrup must add such a bright, fragrant twist. Can’t wait to try this with garden-fresh rosemary!”
Wow, this Rosemary Collins looks amazing! Just made it yesterday and it turned out perfect for our backyard BBQ. The rosemary simple syrup adds such a unique twist – not too strong, just right. Speaking of measurements, I used the Board Foot Calculator website to help convert some woodworking measurements for our new outdoor bar where I served these drinks. The cocktail is super refreshing and perfect for summer afternoons. Will definitely make it again! 🌿🍸
This Rosemary Collins sounds refreshing!
This Rosemary Collins sounds refreshing! Reminds me of simpler times, like managing Papa’s Pizzeria, focused on getting every order perfect. It’s all about fresh ingredients and careful crafting, just like this cocktail. I can almost taste the rosemary now, picturing myself relaxing after a long day of serving up delicious virtual pizzas. A perfect drink for a perfect virtual day.
I love cocktails. Thanks for the rosemary collins cocktail recipe. I will definitely try.
I love gin and tonic, so I’ll definitely try this.
Perfect drink for a long holiday weekend! Our rosemary is going like wild and I need to use some anyway. So I will. 🙂
Great idea to add rosemary! This looks delicious and easy to make 🙂
I’m a gin and tonic girl so l will certainly try this.
Do Debra; it’s simple and delicious. Goes down almost too easy. 🙂
Love rosemary, but glad you went with a light hand with it — just a smidge too much is WAY too much. It’s strong stuff. Good, though. 🙂 Lovely drink. And I still have rosemary in my garden! Score!
My feelings too and beyond that I just wanted something really simple. The neighbor who ‘might’ drop by was actually sitting and waiting. 🙂