Huevos Haminados

Huevos haminados, also served at life-cycle events and the Sabbath or holiday midday meal, were originally cooked on top of flavorful meats and legumes in hamins, the slowly braised Sabbath stews. But when hamin is not on the menu, or pareve eggs are desired, they are prepared as in this recipe, cradled in onion skins and gently simmered overnight in the oven or on top of the stove. Spent coffee grinds, or sometimes tea leaves, are added to the roasting materials for additional flavor. My f