Add herbs to a 16-ounce glass jar. Carefully fill the jar with vodka, covering the herbs. Cover the top of the jar with a square of wax paper, then secure the lid. Give the jar a shake to make sure everything is nicely distributed.

After about an hour, remove the lid to check the alcohol level. There’s a good chance the herbs have absorbed some of the alcohol, so top it off with vodka. Secure the lid and set the jar somewhere away from direct sunlight and heat where you’ll remember to shake it every few days.

After four weeks, strain the tincture through several layers of cheesecloth. You can do a second pass through a coffee filter if you want to get the smallest bits of herb and sediment out but this does take some additional time and certainly isn’t strictly necessary.

Transfer the tincture to a glass jar or bottle and label it with the name of the blend, the herbs included in the blend, and the date. Store the tincture away from direct light and heat.

To use, adults can take a dropperful (about 20-30 drops) 15 minutes before meals to stimulate digestion.