Hi Judy, Lactose free should be fine. I have tried this recipe using regular whole milk. I find that it doesn’t firm up quite as much as the version with all half & half does. You might try whisking in 2 tablespoons of Signature Secrets to your filling before pouring it in the pie shell. That should add that bit of thick and creaminess that whole Lactaid milk is lacking. Happy baking! -Gwen

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