Sugar Daddy is a sucker manufactured by Tootsie Roll Industries that is essentially a moderately hard brick of caramel similar to a Slo Poke, the "All Day Sucker".
The Sugar Daddy was created in 1925 by The James O. Welch Company and was originally called a "papa sucker."
According to Tootsie Roll Inc, the name change suggested "a wealth of sweetness.
"[1] The James O. Welch Company was purchased by Nabisco (now Mondelēz International) in 1963.
The Welch brands were sold to Warner-Lambert in 1988; Tootsie Roll Industries acquired them in 1993.