Personally I wouldn't slice smaller than 1/2 inch (which takes 2 to 3 minutes to blanch) but if you do slice smaller then start checking tenderness at 1 minute. After blanching give an immediate ice water bath to stop the cooking process, pat dry well and place in freezer bags with as much air removed as possible. They should hold up well for six months and some people say as much as one year.
Add your voice to the conversation. Click here to answer this question.