Crush your graham crackers to sand texture. You can put them in a large zip close bag and roll them with a rolling pin, or use a blender (easiest). Melt your butter covered in a bowl in the microwave for 30-45 seconds.
11½ sheets graham crackers
Mix all ingredients together thoroughly so the butter coats all of the graham cracker crumbs.
3 Tablespoons light brown sugar, 7 Tablespoons salted butter
Smooth into a 9 inch pie pan with a flat bottomed cup or bowl. You can use it to press the edges into place with your finger laying on top of the edge to make a smoother edge. Make sure to press them down until pretty firm.
You can either fill the pie shell now, or bake it at 350℉ for 10 minutes. Baking the graham cracker crust helps to firm it up. Just make sure you cool it completely before using it for a cold, no bake pie!
Notes
Make a day or two ahead and cover until ready to use. Store at room temperature. Freeze covered for up to 3 months.