Chelsea bun 
noun British
A flat, spiral-shaped currant bun sprinkled with sugar.This year it was his chocolate chip and toffee and banana muffins, Easter biscuits, crusty and soft rolls, Chelsea buns, and large crusty cobs which caught the adjudicator's eye resulting in a cache of trophies....
- I did feel better on the diet (done as experiment rather than to lose weight) but found it tricky to avoid cakes (mmmmmmmm… Chelsea buns).
- The Chelsea bun contained fruit, but the reason for the name was obscure to me.
Origin
Early 18th century: named after Chelsea, where such buns were originally made.
- you-all's
- you-alls
- you and whose army?
- you and yours
- you are welcome
- you bet
- you betcha
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- you (can) bet your bottom dollar
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- you can say that again!
- you can't get a quart into a pint pot
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- you can't lose
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- you could have knocked me (or her, him, etc.) down with a feather