Combine sugar and water in a small saucepan over medium heat. Stir until the sugar dissolves completely - about 5 minutes. Remove it from the heat.
3/4 cup sugar, 3/4 cup water
Split the vanilla bean lengthwise and scrape out the seeds. Add the seeds and the bean pod to the saucepan.
1 vanilla bean
Let cool completely to room temperature for 1-2 hours while infusing the syrup further with the vanilla.
Transfer the vanilla simple syrup (with or without the bean) to an airtight container such as a mason jar with a lid and store it in the fridge for up to 3 weeks.
Notes
Don't boil the vanilla: Make sure to remove the simple syrup from the heat before adding the fresh vanilla as it will high heat will change the vanilla flavor.Let the syrup cool completely before storing: This extends the infusion time and ensures a rich syrup.Store in an airtight container in the fridge: This keeps your homemade vanilla syrup fresh for up to 3 weeks.