Which ingredients are considered dry ingredients?
In baking recipes, the dry ingredients are flour, baking powder,
baking soda, spices, salt, cocoa (if it's used) and anything else
that doesn't have moisture in it. Wet ingredients are fat, eggs,
vanilla, milk, buttermilk and anything else that has moisture.
Sugar is usually catagorized with the wet ingredients because it
dissolves. The other dry ingredients (other than salt) don't
dissolve but form a suspension.