There are two sets of ingredients for when you use liquid and flavour or when you use jam. You can explore by changing the flavours,
eggs,
oil (I used rice bran oil),
Sugar or Xylitol,
plain flour (sponge flour),
Lemon juice,
grated lemon zest,
milk and vanilla beans,
milk and cocoa powder,
orange juice and orange zest,
milk or water and matcha powder (Japanese green tea powder, very healthy and full of health benefits),
milk and one tea bag (If you make a strong earl grey tea with heated milk (not hot water), it is lovely, too)