Baking whole onions is easy and can be done ahead of time.
1. Stand whole onions (skin and all) root side down in a baking pan (Teflon or covered with foil).
2. If you have some ring molds, stand each the onion inside a ring mold (as shown). If not, trim the roots just enough so
that they stand upright. (photo two).
3. Place them in a pre-heated 400F oven for 60 to 75 minutes,
until they are fork tender.
4. Remove from oven and rest in a warm place (holding
point).
5. When ready, slice each onion in half across the root
stem (a sharp serrated knife works best), add some salt and pepper.
As an option, add a dollop of butter and a nice layer of freshly grated Parmigiano Reggiano.
6. Return to a hot oven to melt the topping.
