McDonald’s has added a grilled onion cheddar burger to its dollar menu through the end of January.

The sandwich, which launched Dec. 31, is the restaurant chain’s latest item to be grilled using fresh onions. Another limited-time offering, the cheddar bacon onion sandwich, debuted in October. It was available with angus beef or grilled chicken and included slivered, caramelized onions.

The grilled onion cheddar burger is a beef patty served with onions and a white cheddar slice on a toasted bun. It’s on McDonald’s extra value menu, according to Tyler Litchenberger, communications manager, McDonald’s USA.