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High Altitude Cake Recipe Adjustments?

post #1 of 2
Thread Starter 

I need some help with what adjustments. Both layers I made fell in the middle during baking. I didn't open the oven prematurely and am assuming I need to modify ingredients and perhaps the temp and time (350 for 30-35 minutes). I live at 9600ft elevation. 

 

I'd love to hear any suggestions. Thx!

 

Sandra

 

 

 

INGREDIENTS
  • 2 cups all-purpose flour
  • 2 cups sugar
  • ¾ cup unsweetened cocoa powder
  • 2 teaspoons baking powder
  • 1½ teaspoons baking soda
  • 1 teaspoon salt
  • 1 teaspoon espresso powder
  • 1 cup milk
  • ½ cup vegetable oil
  • 2 eggs
  • 2 teaspoons vanilla extract
  • 1 cup boiling water
post #2 of 2

I lived at 7800 feet for several years and still spend time there. Each recipe seems to respond to different adjustments. What's happening is the cake rises too fast and doesn't have a strong enough structure to support itself.  The standard adjustments are"

 

  1. Reduce baking powder and/or baking soda
  2. Reduce sugar 
  3. Increase liquid
  4. Increase oven temperature

 

Old advise I never hear anymore is to use more egg. I think the added protein gives the structure more strength.  Either use jumbo eggs or an additional large egg. For dense type cakes and brownies, I did well with this.

 

For lighter styles, I had better luck with reducing the leavening and increasing the oven temperature. Extra egg affects the texture too much.

 

Start with one adjustment and take notes until you get it right.  Here's a good guide with a link to the Colorado State University Extension Resource Center if you need more help

 

http://www.kingarthurflour.com/recipe/high-altitude-baking.html

 

Your recipe looks like it's related to a cake my family makes called Black Joe (because of the coffee I hope) Our recipe uses a whole cup of shortening though (yep that's my family!) and the milk is soured with a bit of vinegar. Nobody ever measured and wrote down the exact amount of baking soda needed. "Just enough to balance out however much vinegar you use."

My Grandma was the only one who had success with it consistently. My Mom still makes it with varying results.

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