The adorable actress graces the cover of the June issue of Marie Claire U.K. and spills the details on planning for the wedding.
"I'm relaxed about it, but I am excited and planning ideas because it's fun," she told the fashion mag.
"It's just like throwing a party to celebrate life. I love being in a relationship a lot."
She also spoke about having kids in the future with her fiancé, and where she would want to settle down with a family.
"My mother would love it if I was in L.A. with kids. I loved growing up in L.A., but I always think about places I've never been to before, like Oregon."
The 25-year-old got engaged to Holbrook in March of this year, after the two had spent nearly two years together.
But she's not the only Olsen planning her upcoming nuptials.
Mary-Kate Olsen is set to tie the knot to her longtime beau Olivier Sarkozy sometime in the near future.
So are the sisters bouncing ideas off of each other for the special days? You bet!
Elizabeth revealed that a joint Olsen wedding isn't in the cards, and that the two have already set up some parameters for when it comes time to walk down the aisle.
"I just told her she gets to pick a date first," Elizabeth explained. Older sisters first!
The Godzilla actress also dished on her "charmed" upbringing but says that she's remained down-to-earth with the help of her twin siblings.
"Because my sisters were so grounded, it helped me to be grounded. They never got caught up in things."