Below is a recipe from Serious Eats for making and using a peanut infused rye. Sounds intriguing anyone hear of or try this?
SALTED ROASTED PEANUT OLD FASHIONED
makes 6 cocktails
For the Peanut-Infused Rye:
16 ounces rye whiskey, such as Rittenhouse 100
1 cup shelled raw peanuts
For the peanut-infused rye: Preheat oven to 350°F. Spread peanuts on a rimmed baking sheet and roast in oven, stirring halfway through cooking, until lightly browned and aromatic, about 20 minutes. Let cool. Combine rye and roasted peanuts in an airtight container and let stand at room temperature for 24 hours. Strain peanuts through a cheesecloth-lined strainer set over a medium bowl, then strain Peanut-Infused Rye once more through fresh cheesecloth to remove any sediment.
Note: I didn't copy the rest of the recipe on building an Old Fashioned out of this, but here is the link for full credit to the source material: