With Thanksgiving less than 6 weeks away,1 stores are promoting supplies and ingredients for baking. From flour and sugar to roasting pans and serving platters, stores are helping us prepare for a feast even while Halloween candy and decor vie for our attention.
I've always found baking to be tricky. I can improvise when I cook on the stove top, but I need a recipe to make cookies and cakes. And even then the results are underwhelming. Usually the bake time is underestimated. I poke at least a few toothpick holes in the cakes to test for doneness, and I tend to produce slightly raw desserts.
It turns out that bake times vary a lot; the pan size and material have a significant impact. Here's a summary derived from a box of brownie mix:4
- Dark pans shorten baking time by 3 minutes.
- Glass or ceramic pans increase baking time by 5 minutes
- The surface area and volume of the batter matter, too. For a given volume…
- a smaller pan such as 8" by 8" (or 64 sq. in.) might require 30 minutes
- a larger pan such as 9" x 9" (or 81 sq. in.) might require only 26 minutes.
This defines a significant range; it spans 23 to 35 minutes. And this doesn't account for variations in oven temperature or the temperature of the pan and ingredients.
Equipped with this new information, I'll be moving on to the testing phase. Time to bake brownies!
1 In USA, Thankgiving is celebrated on the fourth Thursday of November;2 in Canada, it's the second Monday of October.3
2 The Emacs-lisp expression (holiday-float 11 4 4 "Thanksgiving USA") can be added to the holiday-other-holidays variable, or (diary-float 11 4 4 "Thanksgiving USA") added to your diary file.
3 The Emacs-lisp expression (holiday-float 10 1 2 "Canadian Thanksgiving") can be added to the holiday-other-holidays variable, or (diary-float 10 1 2 "Canadian Thanksgiving") added to your diary file.
