Bourbon Rosemary Old Fashioned Cocktail Recipe

If you love a classic Old Fashioned but want something a little more aromatic and elevated, this Rosemary Bourbon Old Fashioned is the perfect twist. The warm, oaky bourbon pairs beautifully with a lightly herbal rosemary syrup, while orange bitters keep everything balanced and familiar. It’s cozy, sophisticated, and surprisingly easy to make at home—ideal for dinner parties, holiday gatherings, or a quiet nightcap.

A classic Old Fashioned is already timeless, but adding rosemary gives it an aromatic, modern twist that feels both cozy and elevated. This Rosemary Bourbon Old Fashioned keeps the soul of the original cocktail intact while layering in subtle herbal notes that enhance—rather than overpower—the bourbon. It’s simple, intentional, and perfect for slow sipping.

This cocktail feels especially special because it builds on a timeless formula while adding just enough fresh flavor to make it memorable. The rosemary brings a subtle piney note that enhances the bourbon rather than overpowering it, creating a drink that’s both comforting and refined.

Why We Love This Cocktail

This rosemary bourbon old fashioned is proof that small, thoughtful changes can completely transform a classic. The rosemary syrup adds complexity and an herbal note without masking the bourbon, and the orange bitters tie everything together beautifully. It’s warm, aromatic, and endlessly drinkable—perfect for cozy nights, holiday gatherings, or anytime you want a cocktail that feels just a little bit special.

Key Ingredients for this Rosemary Old Fashioned

• Bourbon – Bourbon is the backbone of this cocktail. Its natural notes of vanilla, caramel, and oak provide warmth and richness, creating the perfect base for an Old Fashioned-style drink. The slight sweetness of bourbon pairs beautifully with herbal and citrus elements without needing much added sugar.
• Rosemary simple syrup – Instead of plain sugar or simple syrup, rosemary syrup adds gentle sweetness with an earthy, piney aroma. Rosemary complements bourbon’s oakiness and gives this cocktail a savory, sophisticated edge that feels elevated but still approachable.
• Orange bitters – Orange bitters balance the drink by adding brightness and a hint of bitterness. They cut through the sweetness of the syrup and enhance the bourbon’s citrus undertones, keeping the cocktail smooth and well-rounded.

Rosemary Syrup

• Sugar – Sugar provides the sweetness needed to soften the bourbon’s bite. Using a syrup ensures the sugar dissolves completely into the drink, creating a silky, consistent texture.
• Water – Water dissolves the sugar and allows the rosemary to infuse evenly, creating a balanced syrup that isn’t overly thick or cloying.
• Rosemary – Rosemary adds aroma and depth without overwhelming the cocktail. When gently simmered, it releases essential oils that bring an herbal, slightly woodsy note—perfect for pairing with bourbon.

How to Make Rosemary Syrup

Combine the sugar and water in a small saucepan over medium heat.

Stir until the sugar has completely dissolved.

Add the rosemary sprigs and reduce heat to low.

Simmer gently for 5–7 minutes to infuse flavor without bitterness.

Remove from heat and let cool completely.

Strain out the rosemary and store the syrup in an airtight container in the refrigerator.

Additional Recipes to Try

Crispy Fried Goat Cheese Balls – this easy appetizer has a crackly, golden-brown exterior and a warm, tangy, melt-in-your-mouth center. Goat cheese sounds fancy, frying feels impressive, and yet the prep could not be simpler

Christmas Charcuterie Board –  the perfect centerpiece for any Christmas party! It’s a guaranteed hit at any gathering!

Brown Butter Toffee Chocolate Chunk Cookies – rich cookies without being heavy, and nostalgic yet sophisticated—the kind of cookie that feels special every single time.

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