I went to school out in Seattle (well technically Tacoma, WA... but some people don't know where that is... it's like 30-40 minutes south of Seattle). So there is this bar out there with 3 locations in the Puget Sound area called Matador. And OMG do they have the best everything. Best nachos, sandwiches, fish, steak, chicken, guacamole, chips, salsa, oh and most importantly... margaritas. Before I get too far, let me give you their website so should you be thinking about venturing to the Pacific Northwest, you can experience it for yourself. They have a location in Portland too :) http://matadorseattle.com/
http://matadorseattle.com/2011/05/specialty/
But anyways what I want to tell you about is their mango margarita. I don't recall the amounts of each but here's what's in it: triple sec, sauza gold, lime juice, mango puree. Where can you get this mango puree? There's an Indian grocery store in Wauwatosa, perhaps you've been? Indian Groceries & Spices. Ask for the mango puree... Kasar. SO GOOD! That's all you need. Throw a sugar rim on there. So delicious, try it! You can grab the triple sec, sauza gold, and lime juice at your local grocery store... Pick N Save and Sendik's will have them. Enjoy!