I don’t sip flavored whiskies neat, but with this Peanut Butter Old Fashioned, I set out to duplicate the rich flavor of a Reese’s peanut butter cup in a cocktail.
This time of year my attempts to leave the grocery without a bag of Reese’s peanut butter eggs are generally kept. But, I can still enjoy decadent chocolate and peanut butter together in this easy peanut butter cup cocktail.
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Ingredients in a Peanut Butter Old Fashioned
I crave this recipe two times a year. In the fall around Halloween time, and again near Easter. Sometimes just walking down the candy aisle is enough to make me crave a bag of peanut butter chocolate candy.
- Peanut Butter Whiskey – There are several brands to choose from, but I think the best peanut butter whiskey is Skrewball( affiliate link).
- Chocolate Whiskey
- Chocolate Bitters – I suggest using a chocolate bitter that doesn’t have a strong heat/spice element – think dark chocolate notes, like The Bitter Truth chocolate bitters, or Scrappy’s chocolate bitters. Nothing to heat up the mouth. This cocktail isn’t a multi-dimensional craft cocktail. It’s easy and sweet.
For this screwball old fashioned (more on how to make an old fashioned here), I decided to combine the peanut butter and chocolate flavors of a Reese’s peanut butter cup with my favorite bourbon whiskey.
The combination of rich, smooth bourbon and sweetness from the candy flavors makes this a phenomenal dessert cocktail! A peanut butter old fashion is easy to sip, and it’s easy to make, too.
How to Make the Best Screwball Old Fashioned
- Add the peanut butter whiskey old fashioned ingredients to a mixing glass. As usual, fill with ice, stir and strain into a rocks glass filled with ice.
Since it’ll be served over ice, I tend to under-dilute, just slightly. That keeps the drink from getting watered down as you sip on it.
- Add your garnish. Because this is technically candy in a glass, we’ll add a peanut butter cup (or three) to the cocktail as a garnish. No need to get complicated with a drink that’s meant to be an easy indulgence.
Adjusting the Sweetness of a Peanut Butter Old Fashioned
This peanut butter old fashion is meant to be one where the bourbon can still be detected. If you are looking for a ratio that hides the bourbon better, switch the recipe below to 1 oz. bourbon and 1 oz. peanut butter whiskey.
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Recommended Bar Tools
You don’t need every slick, beautiful bar tool out there to make a peanut butter old fashioned, but there are several I’ll recommend. (As an Amazon Associate I earn from qualifying purchases. However, that does not affect the cost of the items below.) My favorite pieces:
You probably already have these, but you may need them, too:
Other Fantastic Peanut Butter Cocktails to Enjoy
- Peanut Butter and Jelly Old Fashioned
- Elvis (Peanut Butter Banana Julep)
- Peanut Butter Cup Manhattan
- Fast and Easy Peanut Butter Whiskey Cocktails
Peanut Butter Old Fashioned
- 1.5 oz bourbon 90-100 proof Something smooth, with hints of vanilla
- ½ oz peanut butter whiskey I prefer Skrewball
- ½ oz crème de cacao/chocolate whiskey non creamy
- 2 dashes chocolate bitters
- 1 dash cherry bark vanilla bitters optional
- Garnish: a Reese’s peanut butter cup, of course!
- Combine ingredients in a mixing glass and fill with ice.
- Stir until well-chilled and strain into a rocks glass with one large ice cube.
- Garnish with a Reese’s cup. Good luck waiting until you’re done with the drink to eat the candy!
This post, first published in March 2021, was last updated with new content in January 2023.