I made these cookies last night. They aren't really cookies - they are are more like little pumpkin cakes. I feel pretty confident that you could pour the batter into a heart shaped cake pan and this recipe will come out great. It does puff when cooking, so don't over fill the pan (maybe 2/3 full). I'm not sure about baking time, start with 20 minutes and check every few minutes till it's done. Good luck!