Hi, it's my first time to bake! really 1st time and i wanted to try chocolate cake, and i did. i used my turbo at 125 degrees for about 40 mins. it has been pre heated.. the taste was there. i expected the top to be somewhat toasted, though it's also convection cooking, the coil on top is the one heating it so i did got the expected result. however, it appeared to be thicker.. did i use less baking soda to make the cake fluffy? well, it is somehow moist, but it turned out like soft brownie.. what adjustment must i make the next time?