I'm a fan of Made from Scratch cookies, but my favorite is the Rich Chocolate Brownie ($4.99 for a package of 3).
Packaged brownies tend to taste like a square of vaguely chocolate-y chemicals, but Made from Scratch's are rich and moist.
Amerlia Young sells the Made from Scratch cookies (which include chocolate chip, spiced ginger, and an excellent peanut butter) and the Rich Chocolate brownies at the Agricenter farmers market and Miss Cordelia's.
She also offers a larger line of cookies, brownies, and dessert bars via the Made from Scratch Facebook page.
Brownies include Nutty Chocolate, Cappuccino, Cocoa-Nut, and Peppermint & White Chocolate. The dessert bars are Lemon, Cheesecake, and Chess.