Congenial guests and a plentiful supply of good things to eat and drink will ensure a successful dinner party
Since Sylvia has prepared more than enough to eat and drink and her guests are all congenial people, her dinner party is certain to be a success
Making pie dough using ice water and thoroughly chilling the dough before rolling it out will ensure a flaky crust. Andrew thoroughly chilled his pie dough before rolling it out, so, since he used ice water in making it, his pie is certain to have a flaky crust.