I watched this around 2013 or 2014. It was in English, in color and definitely a movie. The main actress was very pretty and blonde. It was a dark comedy. I believe I watched it on Netflix but I’m not sure. All I can really remember about the main character is that she watched cooking shows or liked to cook. If I remember correctly the husband is kind of clueless/absent and she thinks of killing him. The feel of the movie reminded me of Lucky.
Compulsion (2013) with Heather Graham?