Open the door all the way and move the door up halfway. Lift the door up towards you to fully remove it from the stove.
Lay the door down on a flat surface facing down and insert a putty knife into the door seal.
Move the putty knife around the door seal to pry it out of the door. Wipe off the remaining adhesive from the door using a wet cloth.
Allow time for the door to dry and apply gasket adhesive all around the door's edges. The gasket adhesive can be purchased from a hardware store or online retailer.
Press the new seal along the door, making sure it is pressed into the adhesive.
Place the door back onto the hinges and lower the door all the way down once it's attached. Close the door.