This Sunday our churches will keep the feast of Christ the King.
Once upon a time, though, every church in the Church of England would have kept the Sunday before Advent as the "Last Sunday After Trinity". The 1662 Book of Common Prayer collect would have been said in every church:
Stir up, we beseech thee, O Lord, the wills of thy faithful people; that they, plenteously bringing forth the fruit of good works, may of thee be plenteously rewarded; through Jesus Christ our Lord. Amen.
Because of the first line, this Sunday became known as Stir Up Sunday and was traditionally the day for making your Christmas pudding!
If you fancy sticking with tradition, I refer you to Nigella.