Linda & Xochi, I bought my chestnut puree at an Arabic grocery store in Brooklyn called Sahadi’s; you might be able to find it at other Arabic grocery stores nationwide. It’s actually a product of France though, so it might be available at other specialty food stores as well. If all else fails, you can definitely make it at home. You need unsweetened chestnut puree for this recipe; I found a recipe online that looks pretty good http://easteuropeanfood.about.com/od/crossculturaldesserts/r/sweetened-chestnut-puree.htm), but be sure to omit the sugar and vanilla since we just want the plain, unsweetened puree for this dish. Hope this helps!