I've used a roaster in the past and the turkey came out good, I've also used the oven cooking bags with success. The past two years we have done bacon wrapped turkey breasts in our smoker and that comes out so great that it is now the only way my husband wants his turkey to be done!
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This year we only did one as there were only 3 of us eating Thanksgiving dinner here, but in the past we have smoked 2 or 3 at a time.