Wearing gloves, slice the stems away from the jalapeno peppers. Slice the whole pepper in half.
If you’d like a milder end product, remove the seeds and white membrane from inside the pepper. If you’d like a spicier tequila, leave the seeds and membrane intact.
Slice the pepper halves into long very thin strips.This will help your tequila infuse more quickly.
If you’re looking for an extremely spicy tequila, you can add a sliced habanero or ghost pepper.
Add all of your thin pepper slices to a quart sized mason jar or empty tequila bottle. Fill the jar or bottle with tequila blanco, joven, or -if you’re feeling very fancy- reposado.
Cap the jar or bottle tightly and give it a good shake. Let the jar sit in a dark place at room temperature for anywhere from 6 to 72 hours, depending on how spicy and strong you’d like the jalapeno presence to be.
I recommend shaking the jar every 3 to 4 hours, and tasting after 6 hours until it is just right like Goldilock’s porridge. When it reaches the perfect level of spice, pour through a fine mesh sieve or coffee filter.
Discard the jalapeno strips. Pour the Jalapeno tequila into a clean jar or bottle, cap tightly, and store in the refrigerator for up to 3 months or the freezer for up to a year.
Use in margaritas, ranch water, or any place you’d like your tequila to have a little extra kick.