I have mini mason jars, i'll place a cube in there, let it thaw, use tweezers to pick up a small amount of worms and place them in the tank, my Bettas go nuts. I'll put the lid back on the jar and place it back in the freezer for the next feeding. It only takes about 4 minutes for them to thaw well enough for them to be fed to your fish.
I have both frozen and freezedried, i do use the freezedried more often but my boys to love the frozen much more, they usually zoom around the tank after and are much more happy lol.