how do I correctly punctuate ? "Who wants dessert?," Latisha asked us as she walked into the room with a beautiful steaming apple pie. or is it correct?

See Rule 5.

http://www.grammarbook.com/punctuation/quotes.asp

"Do you like horror movies?," Freddy asked Jason.

"Who wants dessert?," Latisha asked us as she walked into the room with a beautiful steaming apple pie.

The correct punctuation for the given sentence would be as follows:

"Who wants dessert?," Latisha asked us as she walked into the room with a beautiful, steaming apple pie.

Here's an explanation of the punctuation used:

1. Opening quotation mark: Begin the sentence with an opening quotation mark since someone is speaking.

2. Capitalize the first word in the quoted sentence: Begin the quoted sentence with a capital letter, as it is the start of a new sentence.

3. Question mark inside the quotation marks: Place the question mark inside the quotation marks since it is part of the quoted sentence.

4. Comma after the closing quotation mark: Place a comma after the closing quotation mark to separate the quoted sentence from the rest of the sentence.

5. Comma after "beautiful": Add a comma after "beautiful" to create a pause and separate the adjectives "beautiful" and "steaming."

6. Period at the end: End the sentence with a period since it is a complete statement.

It's worth noting that punctuation sometimes varies based on style guides or personal preferences, but the explanation provided above follows generally accepted rules for punctuating dialogue and descriptive phrases.