chipped the corner of the electric cooker ?

Due to the lack of detail you’ve provided, I’ll answer the request based on the assumption that you are looking to repair a chip to the enamel finish on a metal stove. Enamel is essentially a type of glass that is baked on to the metal surface, and gluing this chip back on won’t be especially neat or be effective. You’re best bet is to purchase an enamel repair kit, commonly available. Make sure damaged area is clean and simply paint on the repair product with multiple thin coats and you should end up with a decent and invisible repair. A company called Blake and Bull do a good kit available online

Rupert
October 2019