Remove from the oven and lower the oven temperature to 300 F. Using a spoon take out some of the sauce from the center creating a well, reserving it for later. Crack an egg into each one. I find it easier to crack an egg into a cup and then slowly tilt out some of the white into a spare bowl and then pour the remaining yolk and little bit of white into the center of your hamantaschen, otherwise it will overflow.