The powder can be used, however, not only in pure protein shakes. As Snack as fruit smoothies with oatmeal are also very popular. Again, the powder can be very well used.
Here's an example recipe:
240 ml low-fat milk (or rice milk)
40 g whole grain flakes
60 g blueberries
1 table spoon of honey
2 Löfel Whey Protein
Short mix, done. You might want to ice cubes.
The taste can be achieved by exchanging the fruits of course easily change.