Mix table salt and flour in a large bowl. Gradually add 1/2 cup of water and mix to desired consistency. Knead the dough on a flat surface, adding a few more drops of water as needed (but not making it too moist). If possible it is best to let the dough stand for approximately twenty minutes before beginning a project. Unused dough can be stored in the fridge, in an airtight container or cling film, for up to a week.
Instead of allowing the dough shapes to air dry, you can bake them in the oven at 100 degrees C / 200 degrees F until hard. Baking times varies depending on oven and dough thickness. Make sure the dough is completely baked. You can cover the dough with aluminum foil if it starts to darken before completely baked through.
What does a birthday cake look like? What form do we get, when we cut a round cake into pieces? Each child makes his own piece of a birthday cake out of salt dough. Make a little hole on top of the cake before baking; this is for the candle.
After baking the top and backside of the cake pieces have to be painted. Put the candles in the pieces and lay all pieces together on a pie shell.