Pumpkin Sour Cocktail recipe
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Pumpkin Sour sits in the modern “seasonal sour” family: a whiskey sour-style drink that swaps simple syrup for a flavourful, autumn-leaning sweetener. You’ll find it feels familiar if you like contemporary twists on classics—built around bourbon, bright citrus, and a richer syrup—without needing a long backstory to enjoy its appeal. It’s essentially a fall-forward take on the sour template, designed to highlight warming spice and silky texture.
On the palate, bourbon brings rounded sweetness and oak depth, while lemon juice cuts through with clean, sharp acidity. Spiced pumpkin syrup adds the drink’s core character, layering sweetness with spiced pumpkin richness that softens the lemon’s bite and amplifies the bourbon’s warmth. Egg white ties it all together, smoothing the edges and giving you a plush, creamy mouthfeel that makes the sweet–sour balance feel fuller and more integrated.
Serve this when you want something cozy but still refreshing—ideal for crisp evenings, Halloween gatherings, or a Thanksgiving pre-dinner drink. If you enjoy whiskey sours and dessert-adjacent flavours without going cloying, this is your lane, especially in a lowball where it feels relaxed and fireside-friendly.
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Cocktail Colin says:
Bourbon leads with warm oak and caramel, sharpened by lemon juice, while spiced pumpkin syrup brings squashy sweetness and baking-spice depth; egg white wraps it all in a silky, meringue-like cushion that softens the edges. It works because the lemon’s snap balances the syrup and the bourbon’s weight, making it ideal for sour lovers who want a richer, autumn-spiced profile.
Method
How to make a Pumpkin Sour
- Bourbon 60ml, Lemon juice 30ml, Spiced pumpkin syrup 30ml, Egg 1 egg white
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- First you need to make the spiced pumpkin syrup
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- In a saucepan, add a cup of brown sugar, a cup of water, half a cup of pumpkin purée, and a teaspoon each of nutmeg, ginger, allspice and cinnamon
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- Over medium heat until slightly thickened
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- Remove from the heat and place a vanilla pod into the syrup and chill overnight
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- Strain through a cheesecloth and store in a covered container, in a fridge, for up to one week
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- Combine the bourbon, lemon juice, egg whites and pumpkin syrup in a cocktail shaker with ice
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- Shake well then strain into a rocks-filled rocks glass
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- Garnish with ground nutmeg, a cherry and Angostura bitters
Power tips
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Find out more- Perform a dry shake (without ice) after adding the egg white and before the final shake with ice. This will create a frothier, more stable foam for the cocktail.
- Use freshly squeezed lemon juice for a brighter, more natural citrus flavor that balances well with the spiced pumpkin syrup.
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FAQ's
What is the best season to enjoy a Pumpkin Sour?
The Pumpkin Sour cocktail is particularly popular during the fall season. Its ingredients, especially the spiced pumpkin syrup, evoke the flavors of autumn, making it a perfect choice for Halloween parties, Thanksgiving, or any fall gatherings.
Can I make the spiced pumpkin syrup at home for the Pumpkin Sour?
Yes, you can make spiced pumpkin syrup at home. It typically involves simmering water, sugar, canned or fresh pumpkin puree, and autumnal spices like cinnamon, nutmeg, and clove until the sugar dissolves and the flavors meld. After cooling, strain the mixture for a smooth syrup.
Is the Pumpkin Sour suitable for vegetarians or vegans?
The traditional Pumpkin Sour recipe calls for egg white, which is not suitable for vegans. However, vegetarians who consume eggs can enjoy this cocktail. For a vegan version, aquafaba (the liquid from canned chickpeas) can be used as an alternative to egg white to create the frothy texture.
How does the alcohol content in the Pumpkin Sour compare to other cocktails?
With an alcohol content of 16%, the Pumpkin Sour is moderately strong. It's comparable to other classic sours and cocktail drinks, which typically range from 10% to 20% in alcohol content, making it a good choice for those who enjoy a balanced drink with noticeable but not overpowering alcohol presence.
What makes the Pumpkin Sour unique compared to other sour cocktails?
What sets the Pumpkin Sour apart is its use of spiced pumpkin syrup, which brings a distinct autumnal flavor that’s uncommon in other sour cocktails. This ingredient, combined with the bourbon and lemon juice, creates a harmonious blend of sweetness, spice, and acidity, offering a unique twist on the classic sour cocktail profile.
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