Right click the Crafting Guide, and voila! Every single recipe in Minecraft. With handy, detailed explanations as to what each item or block can do! The bottom of the list has vanilla Minecraft furnace recipes.
You can scale the window to suit your needs. The immense list is easily navigable with the scroll bar, shift and the scroll bar, arrow keys, page up/down, home, or the buttons in the window! Also, you can search for specific items or blocks if you are trying to figure out a recipe or if you need a use for an item.
Items that show a * in the top corner mean that any variation of that item will be accepted. For example, wool color or wood type can easily be switched around sometimes. Items with a small F in the top left corner mean that they are in the Forge ore dictionary. This means that certain mods can use items like copper and tin in their recipes, while still accepting any defined interchangeable resources from different mods. Pretty useful, huh?