That secret ingredient? Butter - but not just any kind. We're talking about brown butter, made by melting it slowly until the milk solids turn golden and release a nutty, caramel-like aroma. The transformation is simple. Just melt your butter in a pan over medium heat, stirring occasionally, and watch as the foam subsides and those brown bits begin to form. Then, pour it over your ravioli, season it up, and just like that, you've upgraded dinner with liquid gold.