In a medium saucepan, combine water and peaches and bring to a simmer for 15 minutes. Remove from heat.
Strain out peaches with a fine-mesh strainer.
Stir in sugar until dissolved. Let cool completely before using or storing. Store in an airtight container in the fridge. Makes approximately ¾ cup.
Peach Old-Fashioned
In a mixing glass filled with ice, or directly in a rocks glass, combine peach syrup and bourbon.
Use a bar spoon to gently stir the mixture until chilled.
Strain into a rocks glass with a large ice cube.
Top with peach bitters and lemon bitters. Garnish with a peach slice.
Notes
Best whiskey: Bourbon is classic for an old-fashioned, but other types of whiskey work well too. Use rye whiskey for a spicier drink. Mocktail: Substitute zero-proof whiskey or unsweetened iced tea for a non-alcoholic variation.Batch old-fashioneds: The peach syrup makes this recipe easy to batch. Use the +/- buttons at the top of this recipe card to scale the recipe as you need to.