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The new bar is made up of the rich Dairy Milk chocolate that we know and love, and is loaded with chunky marshmallows, Hundreds and Thousands sprinkles and biscuit pieces. We're drooling just at the sound of it!
The new confectionary, which first launched in Australia, was made available in the UK at online retailer GB Gifts back in June - but featured a hefty £1.99 price tag per individual bar.
However, the Birthday Cake bar is on sale at B&M for £1.25 - a whole 74p saving and more choc for your money.
The new snack was first spotted by Instagram review account Kev's Snack Reviews, which sent followers into a frenzy as many were desperate to try the Birthday Cake flavour chocolate.
"Jesus, take hold of that wheel," one follower said.
"Another trip to B&M needed!" a second raved.
"This is my dream chocolate!" a third drooled.
The post has since racked up an impressive 2,900 shares as sweet-toothed fans were eager to get their hands on the choc.
In other chocolate news, Lindt is giving away thousands of free bars between now and Christmas Eve.
Writing on Instagram about the offer, Lindt explained: "We've re-opened most of our Lindt Chocolate Shops!
"Pop into one of our Lindt Chocolate Shops to receive a FREE LINDOR Orange or Mint bar (38g) while stocks last!
"All you need to do is: Make sure you're following @LindtUK. Pop into a Lindt Chocolate Shop near you (see link in bio for your nearest one)
"Show this Instagram post to one of our team members at the till. The promotion is open to Instagram followers of LindtUK who are UK residents age 16+."
Looks like we can't get enough chocolate this month!
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