Equipment Needed
- Heavy-bottomed, deep 4-quart saucepan (this is crucial to prevent boil-overs)
- Candy thermometer
- 9×13 inch baking pan
- Parchment paper or aluminum foil
- Heatproof spatula or wooden spoon
- Measuring cups and spoons
Step-by-Step Instructions
My journey with this fudge always begins with the most important step: browning the butter. I melt the two sticks of unsalted butter in my heavy saucepan over medium heat. Once melted, I keep cooking, swirling the pan often, until the butter foams, turns a deep golden amber, and releases a profoundly nutty, intoxicating aroma. This takes about 5-7 minutes, and I watch it like a hawk—it can go from perfect to burnt in seconds. I immediately pour this glorious brown butter into a heatproof bowl to stop the cooking. This step isn’t just for flavor; it’s the soul of the entire recipe. Don’t skip it.
After wiping out my saucepan (to remove any dark butter solids), I combine the heavy cream, granulated sugar, and that beautiful brown butter. I clip my candy thermometer to the side, ensuring it doesn’t touch the bottom. Over medium heat, I stir constantly until the sugar dissolves and the mixture comes to a boil. This is where patience is key. Once boiling, I stop stirring and let the mixture cook, undisturbed, until it reaches the soft-ball stage, 234°F to 240°F on the thermometer. This can take 10-15 minutes of gentle boiling. I learned the hard way that stirring during this phase can cause the sugar to crystallize, giving me grainy fudge instead of creamy bliss.
The moment the syrup hits 238°F, I remove the pot from the heat. Working quickly but carefully, I stir in the marshmallow creme and the fine sea salt. The mixture will bubble and froth. Once incorporated, I let it sit, untouched, for exactly 10 minutes. This cool-down period is non-negotiable; I tested skipping it once and ended up with a runny mess that never set. After 10 minutes, I add the vanilla extract and begin beating the fudge with my wooden spoon. I beat, and beat, and beat—for a solid 5 to 7 minutes—until it loses its glossy sheen, thickens significantly, and starts to hold its shape when drizzled from the spoon.(See the next page below to continue…)