How this is accomplished in Spheres of Power
Backstory: A long. long time ago, in a galaxy far away...something completely irrelevant happened.
Meanwhile, back in Terim's hometown, he was packing up his stuff to find a new master who can help to further his pretzel-making prowess. The aroma alone could make the townsfolk swoon, or fly in to a frenzy, but Terim knows there are much better, and much more perfect pretzels out there, and he must learn how to make them too!
General Drawbacks:
Center of Power (Magic Stove)
Emotional Casting (Can't cast if affected by non-harmless emotion effects.)
Focus Casting (Mother's Amulet)
Skilled Casting (Profession: Cook)
Somatic Casting (Can't wear heavier than Light Armor)
Sphere Specific Drawbacks
DESTRUCTION
Shape Focus (Energetic Affliction)
Energy Focus (Fire Blast)
[Dumping boiling oil on someone is not very nice. Also somewhat magical.]
ENHANCEMENT
Bodily Enhancement [Physical Enhancement]
Narcotic Magic [Mass Enhancement]
Consciousness Linked [Deep Enhancement]
[The hardest part of being a Chef is not falling in to the temptation of eating before you served your customers!]
MIND
Blatant Side Effects (Watering mouth, glazed over eyes, flaring nostrels, eating a pretzel)
Boons
Virtuoso (To identify my spells, one needs spellcraft against my Prof:Cook. Failing by 5+ indicates my casting is purely nonmagical. Casting does not inherently alert people that I am casting.)