Step 1: Supplies
Waffle pattern mold:
I used a silicone pot holder with a grid pattern that I got from Bed Bath and Beyond. They don't seem to carry it online but here's the same one from Amazon.
Get a cheap flavor injector anywhere you can. A simple syringe will work but make sure it has a large diameter so the shrimp don't clog up the needle. Bed Bath and beyond
Cutters or sharp scissors:
You'll need these to cut the beveled tip off of the flavor injector needle.
To hold the melted shrimp mixture.
I'm using a shot glass.
Frozen brine shrimp:
Purchased from Petco.
One or more fish to feed:
Step 2: Prep
I also washed everything to make sure there isn't any contaminants from the manufacturing process of any of the new items.
Step 3: Prep continued
Now we're going to remove the extra water that we used to melt the shrimp so we more concentrated cubes. You could also skip this step by just letting the frozen cube melt down on its own. Get your flavor injector and reassemble it if you haven't already done so and your silicone pot holder. Put the pot holder on a flat surface, preferably near the sink.
Now grab your flavor injector and push the plunger to the bottom. Pick up the container with the melted shrimp in the other hand. Tilt the container slightly and with the needle, suck off the clear layer of water, using your thumb to pull the plunger up. If you pull up some of the shrimp, just gently squirt them back in and try again. Squirt the water you've removed into the sink. Once you've removed the extra water we're ready to make some shrimp ice cubes!
Step 4: Suck it!
Step 5: Freeze 'em
After they've frozen up, it's time to de-mold them. Grab your storage container and flip the pot holder over and pop your mini shrimp cubes into the container.