Why Is My Homemade Ice Cream Not Thickening. The answer is based on a few reasons. Making ice cream is 10 flavor development and 90 managing water and ice.
Its really easy to fix. Basically you have a pretty simple physics problem. If you want your whipped cream to last in thick peaks longer than a few hours stabilize it by adding unflavored gelatin mixed with water or cream of tartar mixed with confectioners sugar.
The Herrells folks drop their freshly churned ice cream into a super-cold freezer that brings the temperature down to 30 or 40 below 0 for the creamiest ice cream possible.
Its really easy to fix. The starch you use to make pudding gravy and thicken fruit sauces. Cuisinart ice cream maker doesnt thicken. I used a variation of the recipe put on this site a week or so back and a mix of the one in the William and Sonoma book.