A Pizza.
Dough is a Mechanical mixture!
It smells like fresh buttery dough and it depends what you put in it, savoury, sweet ect.
Yes
cookie dough is a mixture
That process is done so as to make d mixture rise b4 baking as it tends to make the bread bigger and contains more carbohydrate
It binds the dough together-- also adds some flavor.
One can prepare seitan at home by mixing whole wheat flour and water into a dough. The dough should then be covered with cold water and left overnight. Knead the dough until it is more stringy in texture. Put the gluten mixture into a pot of broth and simmer until the broth is gone.
A heterogenous mixture means you can see all the components. So the actual ingredients in making the cookie dough are a homogeneous mixture but...the final product (The cookie) yes would be a heterogeneous mixture.
Dough
Batter
Batter :)