I looking for suggestions on how to get a can of dr pepper down to the temperature where it just starts to get slushy but not freeze and then stay there. My c

I looking for suggestions on how to get a can of dr pepper down to the temperature where it just starts to get slushy but not freeze and then stay there. My current approach is to stick it in a bucket filled with ice and salt wAter, stick that in the freezer for 20 mins, then enjoy. :)