Place the vanilla beans on a cutting board. Using a sharp knife, trim off any very dry tips if needed. Split each bean lengthwise to reveal the seeds inside. You will use the entire bean, so no need to scrape the seeds out separately.
12–14 whole vanilla beans
After splitting, cut each vanilla bean into 1–2 inch (2.5–5 cm) pieces. This makes them easier for a blender or food processor to break down.
12–14 whole vanilla beans
Add the chopped vanilla beans, sugar, and vegetable glycerin (or vodka) to a high-speed blender or a small but powerful food processor. If your machine is weaker, start with about half of the liquid and add the rest gradually as it blends.
12–14 whole vanilla beans, 1 cup food‑grade vegetable glycerin, 1/2 cup granulated sugar
Blend on medium to high speed for 2–4 minutes, stopping to scrape down the sides as needed. Aim for a thick, grainy paste with visible vanilla specks, not a completely smooth purée. If the mixture is too thick to blend, add 1–2 tablespoons of water to loosen it.
12–14 whole vanilla beans, 1 cup food‑grade vegetable glycerin, 1/2 cup granulated sugar, 2 tablespoons water
Carefully taste a tiny amount; it may be slightly warm from blending. The paste should be very strong, slightly sweet, and pleasantly bitter from the vanilla. If it tastes too intense or thick, add a bit more sugar or liquid and blend again until you like the flavor and consistency.
1 cup food‑grade vegetable glycerin, 1/2 cup granulated sugar, 2 tablespoons water
For enhanced flavor, blend in the fine sea salt. For a thicker, gel-like commercial-style paste, sprinkle in the xanthan gum and blend for another 30 seconds. The paste will continue to thicken slightly as it rests.
1/2 teaspoon fine sea salt, 1/2 teaspoon xanthan gum
Spoon or pour the vanilla paste into a clean glass jar with a tight-fitting lid, using a spatula to scrape out every bit. Label the jar with the date and note whether you used glycerin or alcohol as the base.
You can use the vanilla paste immediately, but for the best flavor let it rest for 24–48 hours. Store alcohol-based paste at room temperature in a cool, dark place. Store glycerin-based paste in a cool cupboard or in the refrigerator.