Vector Cookies from Cookie Cthulhu by Echo Chernik.
Here are more Desserts:
Here is the entire series:
PLATFORM: PC and Mac
TOOLS: Two Wacom tablets (Intuos 3 and Cintiq 21UX)
PROGRAM: Adobe Illustrator
EFFECTS: I don't use any 'effects', but there are simple strokes and Brush strokes, gradients and gradient meshes, and many many objects with varying transparency settings.