Picture of How to Bake Cookies at HIGH ALTITUDE
I have lived in the mountains of Colorado and Utah, my entire life and love making cookies.  Over the years I’ve met people who have moved here and tell me they can’t make cookies that turn out right, because of the high altitude.  I won’t go into too many details about the science of why baking is different at high altitude, other than to say that because air is thinner, water boils at a lower temperature, and this causes problems. 

First, in this instructable I’ll give you a really great chocolate chip cookie recipe and then I’ll give you some ideas for “tweaking” your own recipe so that it works here in the mountains.  Here’s what you need:

1 Cup Butter/Margarine, softened
¾ Cup Sugar
¾ Cup Brown Sugar
2 eggs, room temperature
1 teaspoon Vanilla
½ teaspoon Salt
1 teaspoon Baking Soda
3 Cups All Purpose Flour
12 Ounce package Chocolage Chips
Nuts/Raisins (Optional)
A mixer
A good wooden spoon or spatula
A good quality baking sheet (see step 9)
A cookie scoop - optional
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Step 1: Preheat your oven

Picture of Preheat your oven
I know this doesn't seem like a big deal, and a lot of people skip this.  But, make sure you preheat your oven to 375 degrees.  Don’t put your cookies (or a lot of other baked goods) into the oven until it’s at the right temperature.  If you put them in before the oven is the right temperature, they will probably burn on the bottom.
djohnson4319 days ago

Hi there, I have a question because I have a cookie business from home. I am in Oklahoma now but moving to Colorado shortly. I usually bake my cookies at 350, here you say to preheat your oven at 375, but then to modify my own recipe you say to bake at a lower temperature ? So should I bake my recipe at 325?? Thanks Diann

A few suggestion for this recipe:

1. Decrease the baking soda slightly by indenting your finger into the baking soda on the measuring spoon, leaving a slight indent.

2. decrease the flour by 2 tablespoons for a less dry cookie.

3. it is suggested to melt one stick of the butter/margarine so that you do not need to over beat the cookie dough!

Caulerpa3 years ago
Sabothell I'm baking these right now and they are VERY good! They didn't turn out flat like cookies for me but I think i like them better this way. They're like the lovechild between a biscuit and a chocolate chip cookie! Terrific!

I live at ~8500' and had to cook them 12 minutes. Again, thank you for the recipe! Fantastic!
joshbot1233 years ago
worked great
MattBothell3 years ago
thats awesome
jvdb3 years ago
Top Secret Recipe (tv show) cloned Mrs. Fields. It was shot in Utah (high elevation). They froze the dough to make the cookies not turn out thin.
sunshiine3 years ago
Thanks for sharing this! We live in a high altitude also and baking cakes is different also. Have a splendorous day!