But about your question, "How to make milkshakes thicker and more delicious?" This problem
I can answer you///
First of all, I want to deny the story of the people upstairs.
It doesn't mean that the milkshake will thicken without water. Even if it is strong, it won't taste good. Putting less water is just a step.
First of all, after everything is ready, we should release less water and gradually add water.
Don't stir with a blender, stir by yourself.
Not only can the blender not add water step by step, but it is also not delicious to stir by hand.
Put a little water on yourself, then keep stirring, add water and then stir (note: you can't add water until the water is completely absorbed by the milk), and then add it to the right concentration.
The reason why water should be added gradually is to make the water completely dissolve in the milkshake, so that the milkshake will taste good.
If you do it without this step like upstairs, the taste of milkshake will be as insoluble as milk and water, which is not easy to master.
I hope you can make the milkshake you want according to my method ~ ~ ~