Mix until glossy?

     Do you ever wonder what it means when a recipe says "mix until glossy?" Sometimes much can be lost in the interpretation. The other day I was baking a batch of brownies and my recipe instructed me to add the eggs and mix until the batter became glossy.  Here is a quick visual of what it means...

Batter before eggs: 

Add the eggs: 

Mix until "glossy:"

See the change? The eggs transform the batter into yummy goodness!