Question

1. how did the chocolate chip cookie become popular?

Explanation:

The chocolate - chip cookie became popular due to the accidental invention by Ruth Wakefield in the 1930s. She owned the Toll House Inn and when she ran out of baker's chocolate while making cookies, she broke up a bar of semi - sweet chocolate, expecting it to melt into the dough. Instead, it created chocolate chips. The recipe was shared and eventually sold to Nestlé, which promoted it widely, leading to its popularity.

Answer:

The chocolate - chip cookie became popular after Ruth Wakefield's accidental invention in the 1930s, and its promotion by Nestlé.