The punctuation used will depend on the context of the sentence.
Examples:
* "I had bread and butter for breakfast." - This sentence ends with a period.
* "What do you want to eat? Bread and butter?" - This sentence ends with a question mark.
* "I like bread and butter, and I also like jam." - This sentence uses a comma after "butter" to separate two clauses.
Let me know if you have a specific sentence in mind, and I can help you with the punctuation!