How long ago was the "I'm drunk so I like you" conversation? (we've all been there, no worries bro. just trying to gauge it).
One, plan something out with a bunch of friends and invite her to attend, or just invite her to dinner. Make sure you're not asking her, you're telling her that you are going to a certain place at a certain time and she should join you (this is why planning out something with a lot of people is easier). If you do a group thing, make sure to say you'd like her to join "you" and not "us", and make sure somewhere in the group thing you can get her alone (picking her up works well for this). Three things will come from this. One, she says yes. Two, she says no but offers you a counter (do not take the counter. The counter is an indicator that she is interested, but gives her control. Just say that won't work and that you'll get back to her). Three, she says no with no counter. If three occurs, do not talk to her at all for at least a week, then out of the blue make one more offer. If she refuses again, you will delete her number and you're done with it.
And if you hear the dreaded, "let's just be friends," you look her dead in the eye with a genuine, honest smile on your face, and say "You seem like a genuine person, but I have enough friends right now. It was a pleasure to meet you." Shake her hand, walk away and do not look back. You will not believe how powerful this line is, but it absolutely has to come from a genuine place and not a spiteful one. I've always toyed around with "Wow, really? You seemed like you had a better eye for people." I only got to use this one once, but she seemed dumbfounded and called me the next day for a date.
Let me know how it goes!