Cook's Illustrated

Foolproof All-Butter Pie Pastry

Published September 1, 2005.

All-butter pie doughs tout great flavor, but they often fail to be flaky and are notoriously difficult to work with. Could we get everything right?

The Problem

An all-butter pie pastry can become a greasy mass of dough that's not only difficult to roll out but that bakes up into a stiff, dense shell.

The Goal

We wanted an all-butter pie pastry that was easy to mix, handle, and roll, producing a pie crust with all the tenderness and flavor that the description "all-butter" promises.

The Solution

We initially tried to make the dough easier to handle by reducing the amount of butter, but this resulted in bland flavor and dry texture. Rather than adding back the subtracted butter, we experimented with other forms of fat, including heavy cream, cream cheese, and sour cream. We found that sour cream not only added flavor but, because acid reduces gluten development, also helped keep the dough tender. But sour cream had one drawback: Its additional moisture made the dough too damp to cut in and properly disperse small bits of butter. We compensated by using the food processor, which brought the ingredients together quickly and evenly.

list of recipes
America's Test Kitchen

America’s Test Kitchen is a 2,500-square-foot kitchen located just outside of Boston. It is the home of Cook’s Country and Cook’s Illustrated magazines and is the workday destination for more than three dozen test cooks, editors, and cookware specialists. Our mission is to test recipes until we understand how and why they work and arrive at the best version. We also test kitchen equipment and supermarket ingredients in search of brands that offer the best value and performance. You can watch us work by tuning in to America’s Test Kitchen (www.americastestkitchen.com) on public television.