Looking A Bit Perplexed

I am trying to figure out what my Mom is drinking! It smells kinda good, but it is brown! I don't like the color brown! Now if it was pink or purple or yellow or red, I would like it, but brown? It is in a large plastic cup, with ice and a straw in it. She has a look on her face, like she has died and gone to heaven! She says it is her most favorite thing to drink, especially since she moved to Florida! Help me out here people, and tell her to at least change the color! Oh, and by the way, she DOES NOT share this with me!
Lovies, on a very hot summer day, Miss Mindy