While appearing on "The Drew Barrymore Show," JLH spoke about her deep friendship with the 99-year-old icon and included a story about them getting "super drunk" together.
"One of the only times that I've been, like, super drunk was with Betty in public and she veered off into a bush and I thought, 'Oh my gosh, I am going to kill the national treasure Betty White,'" Jennifer joked. "Then she loves to end her nights with you by eating gummy bears."
"She's everything you want her to be and more," JLH added. "She's the best and I just love her to pieces."
The "I Know What You Did Last Summer" star offered more information about the "Golden Girl."
"Pizza and vodka are her favorites," Jennifer said. "She also loves hot dogs and she cheats at Scrabble horribly, but she's Betty White so you just let her win."
The women previously starred in the 2011 Hallmark film "The Lost Valentine."
Last month, many of Hollywood's biggest names heaped praise on Betty on her 99th birthday. Ellen DeGeneres called Betty "a miracle in every way." Former President Bill Clinton called her "a national treasure." Some even argued that her birthday, Jan. 17, should be declared a national holiday.
Betty kept her humor on her big day, saying in a statement, "Since I am turning 99, I can stay up as late as I want without asking permission!"