Take off grates, griddles, and other removable parts. If the residue is not heavy, skip to the next slide. Should you have serious burned-on spills, place parts on a newspaper outside or in a well-ventilated area and spray with a commercial oven cleaner, following manufacturer's instructions. Let sit a few hours or overnight.
Wash grates in hot water and dishwashing liquid. Use a scouring pad on noncoated grates; for coated ones, use a sponge. Dry thoroughly before replacing
Clear any blockages with a pin or paper clip.
Soak a cloth in hot water, and place over the spill for a few minutes. Remove buildup with a rubber scraper.
Use a damp sponge to wipe the surface clean. Be sure the sponge is not sopping; excess water can damage the igniter. On a glass or ceramic cook top, use a damp cloth.
Remove knobs, and wash with warm water and dishwashing liquid. Do not soak in water or use a cleaner that contains ammonia or abrasives, since doing so may remove the graphics. Dry thoroughly before replacing.
Using a cotton or microfiber cloth, wipe the stove top dry. (If it's stainless steel, wipe in the direction of the grain.)