What are some shavous foods

WHAT TO BAKE FOR SHAVUOS (a) Seven-layer cake (b) 3 cornered kreplach- ( Haman Taschen) (c) Saffron Matzah (d) Saffron cake (e) 4 cornered Challah (f)  Honey cake (g) Butter Challah  NO source for cheesecake  SOURCE: The Sefer יוסף אומץ ס' תתנ"ד writes the Minhag was to make a cake/kugel in the shape of a (a) seven-rung ladder. The reason for it is because, during  Matan Torah, Hashem tore open all 7 heavens to show that אין עוד מלבדו.  The Minhag in many German Kehilos was to bake for שבועות  a seven-layer cake for the seven weeks we counted. The Sefer מנהגי ישורון writes of the Minhag to eat (b) 3 cornered Kreplach (Haman Taschen) to commemmerate Matan Torah דיהיב אוריאן תליתאילעם תליתאי ע"י תליתאי ביום תליתאי בירחא תליתאי (MULTIPLES OF THREE) The כל בו writes that "the מנהג בכל ישראל* is to eat on שבועות, (c) Matzah baked with Saffron.The Chok Yaakov O. Ch 494 has a (d) girsa “עוגה” (cake) instead of Matzah. The כל בו gives the reason " because it is *משמח את הלב (brings joy to the heart)." *Saffron has an ancient history of use as a drug. It has a narcotic effect  similar to opium. (GOOGLE) The כל בו also writes to bake a (e) Challah with four corners (looks like two)  to remind us of the שתי הלחם and/or it symbolizes "twins" (מזל סיון תאומים)  The רוקח writes that on Shavuos morning you bring the children for the first time in Shul and serve them a specially inscribed (f) honey cake. The משנה ברורה quotes from the מגן אברהם to bake (g) one Challah with butter. This will force you to have a second Challah (זכר לשתי הלחם) to eat with the meat.