McDonald's has run out of milkshakes in the UK

McDonald's has been forced to stop selling milkshakes and bottled drinks at nearly 1,300 restaurants in the United Kingdom as Brexit-related staff shortages and supply chain delays caused by the pandemic continue to slam companies.

source https://www.cnn.com/2021/08/24/business/mcdonalds-milkshake-shortage-uk/index.html