Girls, How to ask a girl on a date after “let’s try be friends”?

I’ve had a crush on my friend for the longest time and last year we both figured out how we felt about each other and it turns out she had the same feelings. We dated for a bit and then I moved away for work and we decided to be friends. I think it ended in a door half opened/half closed situation. I’m coming back soon and want to know if I should call or text her when asking her out on a date again. Texting might give her some time to think about everything seeing that we’ve had a strange relationship a few months ago, but I am the type of guy that likes doing things more personal. Should I text here and thus give her time to figure it out and not put her on the spot by calling her?

Girls, How to ask a girl on a date after “let’s try be friends”?
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