About 35 years or so...give or take a few, my sister had me over her house and they made these. I fell in love! My son asks for them on his birthday and I wanted them for my birthday dinner last night. That really tells you how good these are. Frying a flour tortilla makes all the difference for this wonderful crispy dish.
They are so good and very easy to make. If you have a big crowd, I would strongly suggest this.
It doesn't cost much, it's fast and easy, plus everyone is very very happy!