Here’s a tip to easily get a glass baking pan squeaky clean.
I often bake chicken in the oven, and when I do the glass pan ends up being greasy and has baked-on food. I used to scrub and scrub with a cleaning pad and mild cleanser to get the plan clean. But no more!
First, I wipe the pan clean of the big food particles and excess grease. Then, I use my hands to apply a coating of dish detergent all over the pan, being careful to cover all of the baked-on food and splatters. I let this sit for 30-40 minutes, or sometimes longer if I’m doing other things or if there is a lot of baked-on food.
When it’s time to clean the pan, the grease, and baked-on food easily wipe away. For stubborn spots, I use a mild cleanser. The pan is once again clean and shiny.