What does adding an extra egg to cookies do?

In this article, we will answer the question “What does adding an extra egg to cookies do?”, what is the purpose of adding egg yolks to the cookie dough, how do egg whites change the texture of the cookies, and how to make soft and chewy cookies at home.

What does adding an extra egg to cookies do?

Adding an extra egg to your cookies will make our cookies chewier. It makes your cookies extra soft and rich. Throwing in an extra egg works great if you find your dough looking too crumbly. If the dough is gooey and sticks together, you do not need an extra egg. 

If you do add an extra egg regardless, you may need to bake your cookies a bit longer since eggs add moisture to the dough.

 Refrain from adding too many eggs if you like your cookies light and chewy. Because the excess moisture from the additional eggs will lend a biscuit-like crisp texture and bite to your cookies.

What’s the purpose of adding egg yolks to the cookie dough?

The yolk in the egg has a tenderizing effect on the cookie dough and the cookies. It yields them soft and chewy. This is attributed to the fat content of the yolk due to which it acts as an emulsifier, thus making your cookie dough more rich and creamy. 

Not only the texture is chewier, but the taste is richer. Cookies made with plenty of yolks are moist and more flavorful than cookies made with fewer yolks or none at all.

How do egg whites change the texture of the cookies?

Whipping the egg whites is an art and is an important one in baking. The whipping action incorporates tiny air pockets into the whipped egg white mixture. 

When the whipped eggs are mixed with the rest of the ingredients, some of the air escapes and the mixture deflates to some extent. 

But the significant amount of air that remains behind serves to make your cookies crumbly, airy, and more cake-like. Egg whites lack fats and contain more moisture instead. The fat is what cuts the water in cookie dough, making it dense and chewy.

For chewy cookies, you need to have a balance between the yolks and the whipped eggs, or else you will end up with cookies with a texture like macarons.

How to make soft and chewy cookies at home?

Ingredients 

  • 1 ½ stick 170g butter, unsalted
  • 1/2 teaspoon sea salt
  • ¾ cup brown sugar 150g
  • ⅓ cup fine granulated sugar plus 1 tablespoon, 80g
  • 3 egg yolks from 3 large eggs
  • 1 tablespoon plain yogurt
  • 1 teaspoon vanilla
  • ¾ teaspoon baking soda
  • 200 g flour
  • 100 g dark chocolate chopped
  • 100 g milk or white chocolate chopped
  • sprinkles or flaked sea salt optional

Instructions 

  1. Add butter into a saucepan and brown it over medium heat. Remove from flame when the butter starts to give off a tasted smell and develops a nice golden color. At this point, you will see toasted milk solids settled at the bottom of the pan. 
  1. Weigh the brown better. It should be about 135g. Now stir the butter to expedite the cooling process. Then place the pan in the fridge for the butter to solidify or at least attain a soft room temperature consistency.
  1. Preheat the oven to 350 degrees.
  1. Whip the butter and sugar using a high-speed mixer for about 5 minutes or until pale in color.
  1. Mix in the egg yolks. Scrape the walls of the bowl using a spatula to make sure the mixture is homogeneous.
  2. Stir in yogurt, vanilla, baking soda, and flour. Add flour at the end and refrain from overmixing it into your dough.
  1. Use a spatula to mix chopped chocolate into your cookie dough.
  1. Use 2 tablespoons of cookie dough to make one cookie. Top the cookies with sea salt or sprinkles.
  1. Bake for about 10 minutes in the preheated oven or until the cookies start to turn golden around the edges.

Conclusion 

In this article, we will answer the question “What does adding an extra egg to cookies do?”, what is the purpose of adding egg yolks to the cookie dough, how do egg whites change the texture of the cookies, and how to make soft and chewy cookies at home.

References 

https://www.tastingtable.com/737632/what-will-an-extra-egg-yolk-do-to-your-chocolate-chip-cookies/

https://www.mashed.com/408397/heres-what-happens-when-you-add-an-extra-egg-yolk-to-chocolate-chip-cookies/

https://www.seriouseats.com/cookie-science-how-do-eggs-affect-my-cookies

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