I can never resist this old fashioned 5 ingredient treat, with its sweet, buttery finish and nostalgic charm. One bite and it’s clear why this simple classic never went out of style.

Jump to Recipe

I’m obsessed with this brown sugar fudge because it hits that old-fashioned candy-shop flavor without acting fancy. The brown sugar gives it a deep, almost caramel bite, and the marshmallow creme makes every piece smooth, dense, and just a little chewy.

I love how it cuts into chunky squares that look humble but disappear ridiculously fast. But the real reason I keep coming back?

That gritty-sweet edge, the kind I want in classic fudge. No trendy twists.

No tiny portions. Just rich, sweet, melt-on-my-tongue fudge that tastes like the kind of treat I’d sneak from the pan before anyone noticed.

Ingredients

Print Recipe (No Advertisments)

Brown sugar brings that deep caramel vibe, making the fudge taste cozy and rich.
Evaporated milk keeps things creamy without tasting too heavy.
It’s the quiet helper here.
Butter adds smoothness and a little richness, because fudge shouldn’t feel flat.
Marshmallow creme makes it soft, fluffy, and easier to love.
Basically, texture magic.
Vanilla rounds everything out, so the sweetness doesn’t just hit one note.
Plus, these ingredients together give you that old-school candy shop feeling at home.

Ingredient Quantities

3 cups packed light brown sugar

1 cup evaporated milk

1/4 cup (4 tablespoons) unsalted butter

7 ounces marshmallow creme (about one small jar)

1 teaspoon pure vanilla extract

How to Make this

Print Recipe (No Advertisments)

1. Line an 8 inch square baking pan with parchment paper or foil and lightly butter the liner.

2. In a heavy saucepan combine 3 cups packed light brown sugar, 1 cup evaporated milk, and 1/4 cup unsalted butter.

3. Cook over medium heat, stirring constantly until the butter melts and the mixture comes to a full boil.

4. Once boiling, reduce heat slightly and continue to cook, stirring frequently, until the mixture reaches 234 to 240 degrees F on a candy thermometer or until a small amount dropped into very cold water forms a soft ball.

5. Remove the pan from heat and immediately stir in 7 ounces marshmallow creme until fully melted and smooth.

6. Stir in 1 teaspoon pure vanilla extract until evenly incorporated.

7. Pour the fudge into the prepared pan, smooth the top, let cool to room temperature, then refrigerate until firm.

8. Lift the set fudge from the pan using the parchment or foil, cut into squares, and store in an airtight container.

Equipment Needed

1. 8 inch square baking pan
2. Parchment paper or foil
3. Heavy saucepan
4. Candy thermometer
5. Heatproof spatula or wooden spoon
6. Measuring cups and spoons
7. Small heatproof bowl for the cold water test
8. Rubber spatula to smooth the top
9. Sharp knife and an airtight container for storing the fudge

FAQ

How long will the fudge keep and how should I store it? Store in an airtight container at room temperature for up to 1 week or refrigerate for up to 2 weeks; bring to room temperature before serving for best texture.

Can I use dark brown sugar instead of light brown sugar? Yes, dark brown sugar will work and give a deeper molasses flavor and slightly darker color.

Can I substitute regular milk for evaporated milk? Regular whole milk is not recommended because it has more water and may affect texture; if you must, use 3/4 cup whole milk plus 1/4 cup heavy cream to approximate the richness.

How do I know when the fudge has set properly? The fudge should be thick and glossy in the pot and, after cooling about 5 to 10 minutes, a small spoonful will hold shape but still be soft; once fully cooled and firm at room temperature it will cut cleanly.

Can I add nuts, chocolate, or flavorings? Yes. Fold in 1 cup chopped nuts, 1 cup chocolate chips, or 1/2 teaspoon additional flavoring after removing from heat and stirring in the vanilla and marshmallow creme.

What if my fudge turns out grainy or too soft? Grainy texture usually means it was overheated or sugar recrystallized; next time stir gently and avoid letting sugar sputter on sides. If too soft, chill it until firm, or gently reheat with a tablespoon of butter and stir until smooth then pour into pan to reset.

Brown Sugar Fudge Recipe Substitutions and Variations

For 3 cups packed light brown sugar: use 3 cups packed dark brown sugar for a richer, more molasses-forward flavor, or 3 cups granulated sugar plus 3 tablespoons molasses, mixed until uniform.
For 1 cup evaporated milk: substitute 1 cup whole milk simmered down until slightly reduced for similar concentration, or 1 cup full fat canned coconut milk for a dairy-free, slightly coconutty result.
For 1/4 cup unsalted butter: use 1/4 cup coconut oil (solid) for a dairy-free option, or 1/4 cup vegan buttery spread for a neutral flavor replacement.
For 7 ounces marshmallow creme: fold in 3 cups mini marshmallows, melted into the hot mixture, or use an equal weight of homemade marshmallow fluff if you prefer to make it from scratch.

Pro Tips

1. Use a heavy-bottomed saucepan and keep the heat steady. A thick pan distributes heat evenly so the sugar cooks without hot spots that can scorch or cause crystallization. Moderate, patient cooking beats high heat.

2. Rely on a candy thermometer, but test with the cold-water soft ball method as backup. If you do not have a thermometer, drop a tiny spoonful into very cold water and feel for a soft, malleable ball. Timing and feel matter more than watching the pan.

3. Stir gently but consistently, and scrape the sides of the pan occasionally with a wet pastry brush or spatula to dissolve any sugar crystals. Once you reach the target temperature and remove from heat, switch to vigorous, quick stirring when you add the marshmallow creme for a smooth, glossy finish.

4. If your fudge turns out grainy, warm it gently over low heat and stir in a tablespoon of light corn syrup or a little extra marshmallow creme to help dissolve the crystals. A short remix can often rescue texture without changing flavor much.

5. Cool and cut properly for clean squares. Let the pan come to room temperature before chilling so condensation does not form, then fully chill until firm. Use a hot, dry knife wiped between cuts for tidy edges, and store between layers with parchment to prevent sticking.

Brown Sugar Fudge Recipe

Recipe by Tina Bueller

0.0 from 0 votes

I can never resist this old fashioned 5 ingredient treat, with its sweet, buttery finish and nostalgic charm. One bite and it’s clear why this simple classic never went out of style.

Servings

servings

Calories

335

kcal

Equipment: 1. 8 inch square baking pan
2. Parchment paper or foil
3. Heavy saucepan
4. Candy thermometer
5. Heatproof spatula or wooden spoon
6. Measuring cups and spoons
7. Small heatproof bowl for the cold water test
8. Rubber spatula to smooth the top
9. Sharp knife and an airtight container for storing the fudge

Ingredients

3 cups packed light brown sugar
1 cup evaporated milk
1/4 cup (4 tablespoons) unsalted butter
7 ounces marshmallow creme (about one small jar)
1 teaspoon pure vanilla extract

Directions

Line an 8 inch square baking pan with parchment paper or foil and lightly butter the liner.
In a heavy saucepan combine 3 cups packed light brown sugar, 1 cup evaporated milk, and 1/4 cup unsalted butter.
Cook over medium heat, stirring constantly until the butter melts and the mixture comes to a full boil.
Once boiling, reduce heat slightly and continue to cook, stirring frequently, until the mixture reaches 234 to 240 degrees F on a candy thermometer or until a small amount dropped into very cold water forms a soft ball.
Remove the pan from heat and immediately stir in 7 ounces marshmallow creme until fully melted and smooth.
Stir in 1 teaspoon pure vanilla extract until evenly incorporated.
Pour the fudge into the prepared pan, smooth the top, let cool to room temperature, then refrigerate until firm.
Lift the set fudge from the pan using the parchment or foil, cut into squares, and store in an airtight container.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.