Directions See How It's Made. 1  Preheat oven to 500 degrees. Wait for a few minutes before you put your roast in, so it gets as hot as possible. 2  Put the roast in a shallow pan. (I use a cookie sheet). 3  Cut onion into thin rings, and put all over the top and sides of the roast using toothpicks if necessary.
Definition of preferential. 1  1 : showing preference. 2  2 : employing or creating a preference in trade relations. 3  3 : designed to permit expression of preference among candidates a preferential primary.  4 : giving preference especially in hiring to union members a preferential shop.
Exhaustive preferential (sometimes called Block Majority) is a variation of a majority system that can be used in multi-member electorates. Under this system, once a candidate is elected, all ballot papers are returned to the count to elect the next member.ifferent types of preferential voting include: 1  Full preferential â the voter must show a preference for all candidates listed for the ballot paper to be formal. 2  Partial preferential â the voter must show a minimum number of preferences for candidates â usually equal to the number to be elected.