Combine Ingredients: In a heavy-bottomed saucepan, combine the maple syrup, heavy cream, and salt over medium heat. Stir occasionally.

Cook to Soft-Ball Stage: Bring the mixture to a boil, then reduce heat to medium-low. Cook, without stirring, until it reaches 238°F (114°C) on a candy thermometer.

Add Butter and Vanilla: Remove from heat and stir in the butter and vanilla extract.

Cool and Beat: Let the mixture cool to 110°F (43°C). Beat with a wooden spoon or electric mixer until it thickens, lightens in color, and loses its gloss.

Pour and Set: Pour the fudge into a greased or parchment-lined 8×8-inch pan. Sprinkle with nuts, if desired.

Cool and Cut: Let set at room temperature for 1-2 hours. Cut into squares and enjoy!

Prep Time: 10 minutes | Cook Time: 20-30 minutes | Total Time: 30-40 minutes

Yields: About 16 squares