Knead in the liquid butter until it is well blended.
In a blender (or with a mixer or hand beater) blend the eggs, sugar, yogurt and flavoring.
Add the wet mixture to the dry mixture.
Stir with a spoon until combined and pour immediately into a 9" by 13" ungreased cake pan.
If desired, decorate the top of the batter with the nuts so that there will be one nut in the middle of each piece (which is cut when removed from the oven) or sprinkle a little coconut on top instead.
Bake in a 350°F oven until done and nicely browned.
Over the hot cake pour cool syrup (recipe follows).
Allow to sit to absorb the syrup (a half an hour is good).