Where's the cheesecake?

What to bake for שבועות (a) Seven-layer cake (b) 3 cornered kreplach- Haman Taschen (c) Saffron Matzah (d) Saffron cake (e) 4 cornered Challah (f)  Honey cake I haven't found yet a source for baking cheesecake for שבועות 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 תליתאי לעם תליתאי ע"י תליתאי ביום תליתאי בירחא תליתאי The כל בו writes that "the מנהג בכל ישראל* is to eat on שבועות, (c) Matzah 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)." 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.