Recently, I decided I would try to bake a few eggs in their shells. After a little playing with numbers, I think I've got a good recipe. Set your oven to about 350 degrees F. Put a few eggs in a muffin tin and slide 'em in for 25 minutes or so. Once they've cooled off, they will be about the same as hard boiled eggs, but they will be a little less pretty and peel a tad easier.