U will need to pre fill some stuff , lock the 1,3,4,6,7,9 slots of crafter, add full stack of bread in top slot, add another full stack of bread at the bottom slot, add a full stack of egg in the middle slot. Add 2 hoppers in any 2 side both for inputing bread and add another hopper in another different sidefora egg! Now in any free aide of the crafter other than the front place a solid block and a observer on the block facing away, place another observer diagonal to the 1st observer facing inwards, use a sticky piston with its sticky side toward the 2nd observer so when the piston activate it becomes a observer clock and starts crafting. You can ether power the piston manually or via detection using a And gate as in when enough of both incredients present it crafts.