This Whiskey Peanut Butter Old Fashioned is All the Rage

Last Updated on January 10, 2023 by Heather Wibbels

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

1. 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. 

PRO TIP
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. 

2. 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.

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

Heather Wibbels

Give the kid in you a chocolate peanut butter dessert cocktail to sip on with this recipe for an indulgent whiskey peanut butter old fashioned!

4.80 from 5 votes

Print Recipe Pin Recipe

Course Drinks

Cuisine Bourbon Cocktail

Servings 1

Ingredients

  

1x2x3x

• 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!

Instructions

 

• 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!

Notes

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.

Keyword Ballotin Whiskey, bourbon, chocolate, peanut butter

Tried this recipe?Let us know how it was!

This post, first published in March 2021, was last updated with new content in January 2023.