Peanut butter. According to many scientist lava has the consistency of peanut butter.
This is dangerous information for me as I like peanut butter a lot. Now I must beware the glowing forbidden peanut butter.
Whenever I see videos of them breaking into a fresh stream of it to collect some in a bucket, it looks less viscous than that.
(Maybe I’m just used to the bad peanut butter with the trans fats that keep it from separating, and the natural stuff is thinner?)
What a cheap answer, peanut butter can be any number of consistencies based on temperature and is the first reference point for “thick substance”. I need a scientist to experimentally compare the two and fell me if I need gif or skippy and at what temperature and humidity.