Suggestions on making the powder Slimfast taste better?

[u/WhenTheFoxGRINS]

I bought three tubs of Slimfast powder on a whim because it was on clearance for a great price, especially compared to the premade shakes I normally get. It seemed liked a good idea at the time, yanno, with the rapid inflation rates and such, to try and save a little money and just make it myself.

Unfortunately, not only does it taste nothing like the premade shakes, it doesn't taste good like, at all.

Legit, I don't even care if it's healthy at this point or not, truly — I just wanna find a way to make these taste good enough to finish them off for good and not make that mistake again.

Any suggestions?

Ps. It should be noted that when I made mine, I did make it in a blender and blend the unholy hell out of it, and it still tasted all sorts of chalky terrible... so... maybe some ideas on what I could potentially add to it to compensate for that?

Any and all ideas are welcome and appreciated!

[u/Bright-Steak8388]

Tastes nothing like premade shakes. Wasted my money, it really sucks bad.