Preheat oven to 220°C. Grease a 6 hole muffin tin generously with EVOO.
Place all ingredients, except for the ice water, into the Thermomix bowl and blend 30 sec/speed 6. Scrape bowl and repeat. Set aside for 30 minutes. Just before using batter, add ice water and blend 20 sec/speed 6.
Place one greased muffin tin at a time into the hot oven for 20 minutes. It needs to be very hot!
Working quickly, pour batter into hot tin and place back in the oven as fast as possible. Cook for 8 minutes. Only do 6 at a time. They need to be back in the oven very quickly, so taking the time to do more will cool down the tins and you won't get the best result. If time is on your side, do only 4 at a time.
Add 1 slice of prosciutto to each tin, pressing down to create a dip. Crack an egg into each and place back into the oven for 8 minutes. Make sure the egg does not overflow out of the depression in the batter.
Remove from tins before they stick. Garnish with chives.
Option: Use wilted spinach in place of prosciutto.