making a sweet potatoe pie this year. i've made them in the past with my mother but never noted any changes that were made to the recipe. i also never noted exactly which recipe was used. found a few good ones but i have a few questions:
1. is it true that 1 pound of sweet potatoes equals 2 cups of mashed sweet pototoes?
2. some recipes call for whole milk, some say evaporated milk, some say heavy cream, even found one calling for sour cream. i take it i can substitute one dairy for the other. how does the type of milk affect the outcome? is it creamier, more solid, more fluffy, etc.