I know in my 12" square that I do, I just do one.. but mine are only 2" deep .. so you could do 2 and probably wouldn't hurt ... just remember to coat the flower nail really well with a pancoating or flour/shortening.
I'm panicking because I don't even understand the question. Could someone clarify for me? Thanks!
Instead of using a heating core so your cake bakes evenly,You can put a flower nail in the middle of your cake upsidedown and it bakes the cake evenly.Without flower nail or heating core edges of cake would bake faster than the center.
SweetJanes, when baking a larger than normal cake some of us use flower nails for heat conductors to help bake the middle of the cakes. If you spray your nail really well with the pan spray and place it head down on your pan and add your batter, then it acts as a heating core. It's really neat how that little peice of metal works.
Spanish sugar, French Pastry, Swiss chocolate, and American Apple Pie. How much sweeter can life get????