Peanut Butter Old Fashioned

Bourbon, peanut butter whiskey, chocolate bitters, and crème de cacao give the Peanut Butter Old Fashioned a rich dessert-style twist without losing the structure of a classic Old Fashioned. The bourbon still leads, but peanut butter and chocolate add a sweeter, nutty finish. I like this drink because it keeps the spirit-forward feel of an Old Fashioned while adding flavors that feel familiar and fun. The peanut butter whiskey softens the bourbon, while the chocolate notes bring everything together without turning the cocktail into a heavy cream drink.

The Peanut Butter Old Fashioned works well after dinner, during fall and winter gatherings, or any time you want a stronger cocktail with dessert flavors. It is stirred rather than shaken, served over one large cube, and finished with a Reese’s Peanut Butter Cup for an easy garnish.

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Why You’ll Love This Peanut Butter Old Fashioned

This cocktail has the structure of a classic Old Fashioned but adds peanut butter and chocolate to the mix. Bourbon keeps it bold, while the flavored whiskey and bitters make the drink softer and sweeter.

A few reasons this cocktail works well:

• It stays spirit-forward. Bourbon is still the main flavor.
• It adds peanut butter without cream. The drink stays smooth rather than heavy.
• Chocolate fits naturally with the whiskey. Crème de cacao and chocolate bitters add depth.
• It is easy to make. Everything is stirred in one mixing glass.
• It works well as a dessert drink. The flavor feels rich enough for after dinner.
• The garnish is simple. A Reese’s Peanut Butter Cup makes the theme obvious.

This is a good choice when you want a richer Old Fashioned without completely changing the style of the drink.

Ingredients

The ingredients in the Peanut Butter Old Fashioned build on the usual whiskey-and-bitters structure. Bourbon provides the base, peanut butter whiskey adds sweet nutty flavor, and crème de cacao brings chocolate.

You will need:

• 1 1/2 ounces Bourbon you can use smooth bourbon
• 1/2 ounce Peanut Butter Whiskey
• 1/2 ounce Crème de Cacao or Chocolate-flavor Whiskey
• 2 dashes Chocolate Bitters
• 1 dash Cherry Bark Vanilla Bitters optional
• Reese’s Peanut Butter for garnish

The bourbon should be smooth enough to drink on its own because it remains the strongest flavor in the glass.

Peanut butter whiskey adds sweetness, so there is no need for extra simple syrup in this version.

Chocolate bitters help keep the drink from tasting flat, while the optional cherry bark vanilla bitters add a softer spice note.

Suggested Liquor Brands and Substitutions

A smooth bourbon works best here because the drink already has plenty of flavor from the peanut butter and chocolate.

Here are a few options:

• Maker’s Mark: Soft and slightly sweet, which works well with peanut butter.
• Buffalo Trace: A balanced bourbon with enough structure to hold up to the sweeter ingredients.
• Woodford Reserve: Slightly richer with vanilla and spice notes.
• Skrewball Peanut Butter Whiskey: A common choice for the peanut butter flavor.
• Crème de cacao: Use it for a sweeter chocolate note.
• Chocolate whiskey: Use it instead if you want a slightly stronger, less liqueur-heavy version.

If your peanut butter whiskey is especially sweet, use a drier bourbon to help balance the drink.

You can also reduce the crème de cacao slightly if you want the bourbon to stand out more.

Equipment and Glassware

The Peanut Butter Old Fashioned only needs a few basic bar tools.

You will need:

• Old Fashioned Glass
• Strainer
• Spoon

A classic Old Fashioned glass works best because the drink is served over one large cube.

Chilling the glass before serving helps the drink stay cold without adding too much dilution.

How to Make a Peanut Butter Old Fashioned

This cocktail is stirred, which keeps the texture smooth and clear.

1. Begin by placing an Old Fashioned glass in the freezer to chill while you prepare your drink.
2. In a mixing glass, combine the bourbon, peanut butter whiskey, crème de cacao (or chocolate whiskey), chocolate bitters, and cherry bark vanilla bitters if using.
3. Fill the mixing glass with ice, reaching about three-quarters full.
4. Stir the mixture gently yet thoroughly for about 30 seconds. This method ensures that your drink is well-chilled and slightly diluted, smoothing out the strong flavors.
5. Remove the Old Fashioned glass from the freezer.
6. Optionally, you can rub a small amount of peanut butter on the rim or add a thin layer at the bottom of the glass for an extra peanut butter flavor.
7. Strain the cocktail into the chilled Old Fashioned glass over a large ice cube. A large cube melts slower, keeping your drink cool without diluting it too quickly.
8. Garnish with a Reese’s Peanut Butter Cup. You can place it on the rim of the glass or on a small skewer.
9. Optionally, add a small drizzle of melted peanut butter over the top for a dramatic effect.

The finished drink should be smooth, strong, lightly sweet, and full of peanut butter and chocolate flavor.

Pro Tips

A few small choices can help keep the drink balanced.

• Use a smooth bourbon. Harsh whiskey can fight with the sweeter ingredients.
• Use one large ice cube. It melts more slowly than several small cubes.
• Stir instead of shaking. This keeps the texture smooth and clear.
• Measure the peanut butter whiskey. Too much can cover the bourbon.
• Go light on the crème de cacao. The drink already has plenty of sweetness.
• Keep the peanut butter rim thin. Too much can make the glass messy.
• Chill the glass first. This helps the drink stay cold longer.
• Serve right away. The cocktail is best while properly chilled.

If the drink feels too sweet, reduce the crème de cacao slightly in the next round.

Variations

The Peanut Butter Old Fashioned is easy to adjust while keeping the same basic structure.

• Dark Chocolate Version: Use a darker chocolate liqueur and extra chocolate bitters.
• Vanilla Version: Add a dash of vanilla bitters.
• Less Sweet Version: Replace crème de cacao with chocolate-flavored whiskey.
• Salted Peanut Version: Add a very small pinch of salt.
• No Peanut Butter Rim: Skip the rim and keep the garnish simple with one peanut butter cup.

You can also use rye whiskey instead of bourbon for a spicier version.

When to Serve and Pairings

The Peanut Butter Old Fashioned works best after dinner or later in the evening when you want something stronger and richer.

Try it with:

• Chocolate cake
• Brownies
• Peanut butter cookies
• Cheesecake
• Salted pretzels
• Dark chocolate
• Vanilla ice cream
• Caramel desserts

It also pairs well with other dessert cocktails such as the Peanut Butter Cup Martini, Chocolate Martini, Espresso Martini, or White Russian.

If you are serving several drinks, this one works best as the stronger spirit-forward option.

Storage and Serving Notes

The Peanut Butter Old Fashioned is best stirred and served fresh.

You can combine the bourbon, peanut butter whiskey, crème de cacao, and bitters ahead of time and keep the mixture chilled.

For a larger group, multiply the ingredients by the number of servings you need and store the batch in a sealed bottle.

Stir or pour individual servings over a large ice cube when ready.

Keep the peanut butter cup garnish separate until serving so it stays clean and firm.

If using melted peanut butter, add it only at the end.

FAQs

What does a Peanut Butter Old Fashioned taste like?

It tastes like bourbon with peanut butter, chocolate, vanilla, and light spice notes. The drink is sweet but still spirit-forward.

Can I use regular whiskey instead of bourbon?

Yes. Rye or another whiskey can work, though the final flavor will change.

Can I use chocolate whiskey instead of crème de cacao?

Yes. Chocolate whiskey gives the drink a stronger alcohol profile and usually less sweetness.

Do I need the peanut butter rim?

No. It is optional and mainly adds extra peanut butter flavor.

Can I make this cocktail ahead of time?

Yes. Combine the liquid ingredients ahead and keep them cold. Stir or pour over ice before serving.

What kind of ice works best?

A large cube works best because it chills the drink while melting slowly.

More Cocktails to Try

If you like peanut butter and chocolate cocktails, these drinks fit well into the same lineup.

• Peanut Butter Cup Martini: Peanut butter whiskey, chocolate liqueur, and crème de cacao make a sweeter dessert cocktail.
• Chocolate Old Fashioned: Bourbon and chocolate bitters create a simpler chocolate-forward whiskey drink.
• Espresso Martini: Coffee and vodka make a bold after-dinner cocktail.
• White Russian: Vodka, coffee liqueur, and cream create a classic creamy drink.
• Spooky Caramel Cream: Salted caramel vodka, white chocolate liqueur, RumChata, and cream make a rich fall cocktail.

These give you a mix of whiskey, chocolate, coffee, caramel, and peanut butter flavors for a full dessert cocktail menu.