Prep your pan: Line an 8x8-inch baking dish with parchment paper. This makes cleanup a breeze.
Melt chocolate & condensed milk: In a medium saucepan over low heat, combine chocolate chips and sweetened condensed milk. Stir constantly until smooth. Patience here = silky fudge.
Add vanilla: Remove from heat and stir in vanilla extract. Trust me, it’s worth it.
Pour into pan: Transfer the chocolate mixture into the prepared pan. Smooth the top with a spatula.
Chill: Refrigerate for at least 2 hours until firm. Resist the urge to dig in too soon.
Cut & enjoy: Once set, lift fudge from the pan using the parchment and cut into squares. Try not to eat them all in one sitting… no promises though.