The menu also includes, for a limited time only, a lime and chocolate McFlurry, as well as a lime milkshake and frappé.
We rounded up a team of testers in our office to taste two items of the summer menu: the Spicy Hot Cajun burger and the lime and chocolate McFlurry. We asked them to score the items on taste, presentation and texture. We also asked whether they would buy the new additions.
"The burger looks like it's been in the sun for a long time," says one tester, who wasn't impressed with its presentation - particularly not the state of the lettuce.
It was also not particularly spicy - in fact it tasted like a normal chicken burger with too much sauce.
Our testers scored the burger a five out of ten, and wouldn't buy it.
"I'll stick to my Big Mac," says one tester.
The drink's shade of green was not appealing, and neither was the taste.
"The McFlurry has a slightly synthetic taste," says one tester. The overall verdict was that McDonald's should stick to the Oreo McFlurry.
"That's the one thing they know how to do well."
The overall score was also five out of ten.
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