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The symbolic Rosh Hashanah menu
At the Rosh Hashanah (new year) evening meal it's customary to eat foods that symbolize a Good New Year. The bread is dipped in honey and after eating it the Yehi Ratzon (May it be Your will....) is said, praying for a sweet new year.
יְהִי רָצוֹן מִלְפָנֶיךָ שֶתְחַדֵש עָלֵינוּ שָנָה טוֹבָה וּמְתוּקָה
Yehi Ratzon Mil'fa'necha, she'tichadesh aleinu shana tova u'm'tuka.
May it be Your will, that You renew us for a good and sweet year."
Then one dips an apple in honey, says the Bracha (blessing) on the apple ("Borei Pri HaEtz") and eats some. One then says the Yehi Ratzon again.
There are various other foods that are eaten with their appropriate Yehi Ratzon; one may even add new ones.
One tries to have only sweet items on the menu; no food cooked in vinegar, for example. The custom is to not eat nuts.
One should remember to learn some Torah at the Yom Tov (festival) meals; some learn a chapter of Mishna-Rosh-Hashanah, which has 4 chapters; one for each meal.
Source: Kitzur Shulchan Aruch 129:9
Ktiva Vechatima Tova
כתיבה וחתימה טובה
Wishing you a sweet new year