Brown sugar fudge is a timeless, old‑fashioned candy made from a handful of simple ingredients. It has a rich butterscotch flavor—sweet, creamy, and perfect for gifting. 
This recipe makes traditional brown sugar fudge without condensed milk or marshmallow cream. It’s intensely sweet so a small piece goes a long way, and the brown sugar gives it that irresistible butterscotch character.
I often stir in toasted walnuts or pecans to balance the sweetness, but that’s optional.
Making the Fudge
To make this fudge, brown sugar, white sugar, evaporated milk and butter are cooked together in a heavy‑bottomed pot. Start over low heat and stir gently to melt the ingredients without scorching. Then increase to medium and bring the mixture to a steady boil. Boil until the mixture reaches the soft‑ball stage (about 240°F / 116°C), which commonly takes a little over 15 minutes depending on your stove. 
When the mixture reaches temperature, remove it from the heat and stir in vanilla and salt. Allow it to cool to lukewarm, then beat with an electric mixer for about five minutes or until the shine disappears and the fudge starts to thicken. Fold in the toasted nuts if using, transfer into a prepared pan, smooth the top, and let it set.
The Soft‑Ball Stage
When candy recipes mention stages like “soft‑ball” or “hard‑crack,” they’re referring to the temperature of the boiling sugar. The soft‑ball stage is used for pliable candies like fudge; hard‑crack is for brittle confections. The soft‑ball stage is reached at 240°F (116°C) on a candy thermometer. If you don’t have a thermometer, drop a teaspoon of the hot syrup into a glass of ice water: it should form a soft, slightly squishy ball when cooled.
Storing, Freezing & Make‑Ahead Tips
Store fudge in an airtight container at room temperature for up to one week. If your fudge seems softer than expected (often the result of not boiling long enough), refrigeration will help it firm up; refrigerated fudge keeps for up to two weeks in an airtight container.
Fudge freezes well. Wrap the pan or individual pieces tightly in aluminum foil or plastic wrap and place in a freezer container. Freeze for up to three months and thaw in the refrigerator overnight. If stacking pieces, separate layers with parchment paper to prevent sticking.
Sweet, creamy, and ideal for anyone with a strong sweet tooth, this old‑fashioned brown sugar fudge is an easy and satisfying holiday treat. Serve it alongside other fudges or candies for a varied dessert plate.
Brown Sugar Fudge
Equipment
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candy thermometer
Ingredients
- 1 cup chopped walnuts* (optional)
- 2 cups brown sugar
- 1 cup white sugar
- 1 cup evaporated milk*
- 2 tablespoons unsalted butter
- 1 teaspoon vanilla extract
- 1/2 teaspoon salt
Instructions
Toasting the Walnuts
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Preheat the oven to 350°F. Spread walnuts in a single layer on a baking sheet and bake 8–10 minutes until lightly browned and fragrant. Remove and let cool.
Making the Fudge
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Lightly grease an 8×8‑inch pan and line with parchment, leaving an overhang.
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Attach a candy thermometer to a large heavy saucepan.
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Combine brown sugar, white sugar, evaporated milk and butter in the saucepan. Melt over low heat, stirring gently to prevent scorching.
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Raise heat to medium and bring to a boil, stirring occasionally. Boil until the mixture reaches 240°F (116°C) on the candy thermometer; this usually takes just over 15 minutes.
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Remove from heat and stir in vanilla and salt. Allow to cool until lukewarm.
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Beat with an electric mixer about 5 minutes until the mixture loses its glossy sheen and begins to thicken.
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Fold in toasted nuts if using, then spoon the fudge into the prepared pan and smooth the top.
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Let set at room temperature for 2–4 hours. When firm, lift the fudge from the pan using the parchment overhang, place on a cutting board, and slice with a sharp knife. Store chilled for best texture.
Notes
- Use walnuts or pecans, or omit nuts entirely.
- Be sure to use evaporated milk—not sweetened condensed milk.
- Store fudge in an airtight container at room temperature up to 1 week, or refrigerated up to 2 weeks.
- Nutrition values are estimates per piece, assuming 36 equal pieces.
Nutrition