Take off all the stove’s removable pieces. Fill the kitchen sink halfway with hot water. Add dish soap. Another option would be to use a big plastic tub and have it filled with hot, soapy water. Drop burner tops, knobs, and grates into the water and let them soak while you take care of the stovetop.
Cleaning experts say a simple mix of kosher salt, dish soap, and baking soda will do the trick on cooked-on grease and food stains. Don’t forget to work into the little nooks (you can use a kitchen scrub brush for this). Rise and dry all the removable pieces, then reassemble.