Instead of jalapeno juice, you could also infuse your tequila with jalapenos.
Mmmm, love that idea.
Check out Tanteo Jalapeno Tequila, amazing flavor for an easy jalapeno margarita
I'm heading to BevMo today and will pick up a bottle. Thanks!
Had a tasty spicy margarita at http://www.binksbar.com/ in Portland. They used jalapeno infused tequila and it was delicious.