Question

should there be a comma before the highlighted word?
because rocket ran out of caramel, we had to dip our apples in chocolate syrup.
keep the comma
remove the comma

Explanation:

When a dependent clause starting with a subordinating conjunction (here, "Because") comes before an independent clause, a comma is required to separate the two clauses. The phrase "Because Rocket ran out of caramel" is the dependent clause, and "we had to dip our apples in chocolate syrup" is the independent clause, so the comma is grammatically correct.

Answer:

Keep the Comma