Start by setting out your containers. I like to use airtight, 8-oz glass containers. The number of containers you need will vary based on the size of your containers. One batch of this recipe makes a little over 2 1/2 cups or 20 oz.
Cut 60g of vanilla bean pods (for me, this is about 23 vanilla bean pods*) into thirds and place them inside a high-powered blender. While it might seem silly to cut the beans before putting them in the blender, cutting them helps them break down more easily. If you don't, you can end up with chunks of vanilla bean pod in your paste.
Add 1/3 cup water, 1 cup granulated sugar, 3/4 cup vodka, rum, or bourbon, and 2 Tbsp light corn syrup into the blender with the vanilla bean pods. NOTE: Wait to add the xanthan gum until later.
Begin blending the mixture at a low speed, then gradually increase the speed to high. Let it blend for 2-3 minutes (set a timer, it needs at least 2 minutes). Once you've reached the 2-minute mark, stop the blender and check the mixture. You want to keep blending until the beans are broken down to tiny pieces that are similar in size to the actual vanilla bean seeds.
At this point, turn the blender on at a medium-low speed and slowly sprinkle in 1/4 tsp of xanthan gum through the opening in the lid. Blend for 15-30 seconds, or until it's fully incorporated. The mixture will have heated up from all the blending, but it will thicken as it cools to room temperature.
Pour the mixture into the prepared, airtight containers. Store them at room temperature somewhere dark, like a cupboard or pantry. This can be used immediately for baking!