Sugar and sea salt will test your lighting control
.Flash makes life easy from the vibration angle, but it's much harder to get the light how you want it.
Squishy stuff under a solid slab is a good way to go for ambient light sure enough - but there are other things too if you go that route, such as needing long exposures so the shutter vibration (use mirror lock) is only a very short part of the exposure (1/8th or so is the worst). Then you need bright lights - tungsten bulbs are rather hot, LEDs are OK (look up Jansjo or Jansjö from IKEA) but not very bright, less good spectrally, and not very cheap if you want a few. This is teaching you egg-sucking, looking at your portfolio
.What I'm suggesting is, stick to flash for a bit
And you will need another adapter. Everyone always does
