Can I use this whey protein in cooking and baking, or only in shakes?

Yes. According to the product information, the powder is designed to mix easily and can be added not only to shakes but also to porridge, smoothies, yogurt, pancakes, and other higher-protein snacks and recipes.

If you are using it in cooking, unflavored versions are especially useful because they do not add a sweet or dessert-like taste to savory or neutral dishes. Sweetened options are more suited to a ready-to-mix shake with a milder dessert-like flavor.

A few practical tips: mix the powder with a small amount of liquid before adding it to thicker mixtures to avoid lumps; stir it into porridge after cooking rather than boiling it, to keep a smoother texture; and when baking, use recipes designed for protein powder, because whey protein changes the structure of batters and doughs if you simply replace flour.

Because the product is milk-derived, any dish made with it will contain milk proteins. Keep that in mind if you are cooking for someone with a milk allergy.