1 Place the eggs on the racks. 2  Place a baking sheet pan in the bottom of the oven (just in case an egg breaks). 3  Set the oven to 325F, and bake for 30 minutes. 4  When the eggs are done, fill a large bowl with ice water and move the eggs into the bowl. Position the oven racks in the center of the oven. 2  Place the eggs on the racks. 3  Place a baking sheet pan in the bottom of the oven (just in case an egg breaks). 4  Set the oven to 325F, and bake for 30 minutes.