How to Clean that Awful Oven Window 3 tsp Baking Soda 1/4 cup vinegar 1/8 cup liquid dish soap 2 cups hot water Baking soda (do not add to mix) ◾Combine ingredients in a spray bottle and shake to mix. ◾Spray mixture generously to cover surface completely. ◾Sprinkle generous amounts of baking soda on top. ◾Spray liquid mixture over the baking soda. ◾Leave overnight.