Prepare the corn for grilling. Brush the kernels with butter or olive oil and season with salt and pepper, or these gourmet options. Roll each corn cob in a square of aluminum foil, twisting the ends to secure, like a candy wrapper. If you prefer, you can wait on the butter and herbs until the corn is cooked.
Baking powder is a mixture of baking soda, calcium acid phosphate, and starch. It is used as a leavening. Baking flour is ground wheat and covers all flours used for baking, including cake flour, pastry flour, all-purpose flour, and self-rising flour. So yes, there is a very big difference.
All purpose flour is the standard flour for home baking, but a glance down a well equipped grocery store baking aisle is enough to tell you that there are many other types of flour available for baking. Cake flour is one of them and, if you like to bake, it should be a staple in your kitchen.