In a small sauce pot combine the powdered agar and warm water and whisk to dissolve the agar
Over high heat stirring often bring the solution up to a rolling boil and allow to boil for 20 seconds while whisking constantly
Pour this solution into a heat proof glass or bowl and allow to set to cold and firm
It will feel like a very firm rubbery disc once it is set
Unmold it from the vessel you have used and then cut it into 4 equal portions
Store in a ziploc bag or clean container in the refrigerator until needed
Once you need to stabilize 2 cups of liquid cream, you will melt 1 portion of the agar stabilizer (which is equal to ¾ teaspoon of powder agar and 3 Tablespoons of water) using a small saucepot or the microwave to melt it and then add it HOT to the high speed whipping cream just after it comes to the peaks you desire. I usually whip to medium firm peaks and then add the agar stabilizer to it and whip for another 30 seconds
*Be sure you are using a high speed whip attachment for this or you may get chunks of agar in your cream since agar will set immediately upon touching cold ingredients
Notes
Bulk stabilizer will stay fresh for up to 3 months in the refrigerator. I place mine in a ziploc bag and store in the back of the refrigerator for when I need it in a moments notice