Peel small white onions, cover with brine, allowing one and one-half cups salt to two quarts boiling water, and let stand two days; drain, and cover with more brine; let stand two days, and again drain. Make more brine and heat to boiling-point; put in onions and boil three minutes. Put in jars, interspersing with bits of mace, white peppercorns, cloves, bits of bay leaf, and slices of red pepper. Fill jars to overflow with vinegar scalded with sugar, allowing one cup sugar to one gallon vinegar. Cork while hot.