Buzzman, Burger King Cook Up Drinkware

has partnered with

on a line of flame-grilled glass cups available in France.

For a limited time, the fast food chain is offering a cup for free with every Bacon and Cheese Whopper purchased in France.

Buzzman and Burger King have produced more than one-and-a-half million of the glasses in partnership with tableware maker

. ARC’s production process makes every cup slightly different, with some glasses looking more grilled than others.

The deal with Buzzman marks another crossover for Burger King. Last year, the chain

for a branded meal agreement for its Brazilian restaurant locations.