Potato Starch substitution for mashed potatoes in baking recipes
I have a delightful cinnamon roll recipe that uses 1/2 cup mashed potato. I understand that I can substitute potato starch for the mashed potato, but is it a 1:1 substitution or another ratio and would I need to add any additional liquid(s)? Thank you.
Comments
Melissa - Yes, for a quicker option, you can start with potato starch instead of prepared mashed potatoes, though you will want to add liquid so that you end up with a moisture content similar to that of mashed potatoes. Part of what makes prepared mashed potatoes such a great addition to something like a cinnamon roll recipe is that there is a good amount of fat in mashed potatoes, and that fat impedes gluten development, resulting in a tender, supple dough. There is also water in mashed potatoes, though, so I'd add water and full-fat milk in equal parts to your potato starch until it is pasty and thick; a little melted butter in the mix will also help to give comparable fat content as "real" mashed potatoes. -April D.