Since you were not clear on WHO or WHAT was cooking, here is a list using the verb in the gerund form:
I am cooking. = Estoy cocinando.
You (informal) are cooking. = Estás cocinando.
You (formal)/he/she/it are/is cooking. = Está cocinando.
We are cooking. = Estamos cocinando.
They/you all are cooking. = Están cocinando.
to cook = cocinar
The duration of What's Cookin'? is 1.15 hours.
cookin is what ya smell
Christmas Cookin' was created in 1964.
Cookin' Cheap was created in 1981.
Texas Cookin' was created in 1976.
Country Cookin was created in 1981.
French Cookin' was created in 1990.
Cookin' Cheap ended in 2002-10.
Pressure Cookin' was created in 1973-08.
Cookin' with The Miracles was created in 1961-11.
Cookin' on all Burners was created in 1983.
Home Cookin' - album - was created in 1960.