Cooking with Sara: Tomato Sauce with Onion and Butter

It's Friday, and that means it was my turn to cook for our food blog!

I've been bumping into this recipe since January.  It's been posted on so many of the food blogs I read - Steamy Kitchen, Smitten Kitchen, Epicurious, and Food.com. I decided to finally try it out, and despite my not wanting to throw all that butter in there, it was so, so worth it....

Tomato Sauce with Onion and Butter on From Blah to Ta-Daa

This + salt = the only ingredients!!