Review the item:
Instead of syrup, Jeremiah likes to put peanut butter on his
pancakes,
the smell is appealing, but I would not want to eat anything so sticky
that early in the morning.
The problem occurs between pancakes and the. Jeremiah likes to put peanut butter on his pancakes is a complete sentence. The smell is appealing is the next complete sentence.
Because these two parts have just a comma between them, they create a comma splice, a major sentence error.
To fix the problem, you could put a period after pancakes and then capitalize the T for the.