Homemade Peanut Butter Marshmallow Fudge

a close up shot of pieces of Old Fashioned Peanut Butter Fudge stacked on top of each other on a plate

5 from 12 votes

This rich, creamy, homemade old-fashioned peanut butter fudge is made on the stovetop with creamy peanut butter and gooey marshmallows for a delicious treat.

Prep Time10

Chill Time2

Total Time2 10

Course: Dessert

Cuisine: American

Keyword: Old Fashioned Peanut Butter Fudge Recipe, Peanut Butter Fudge, Peanut Butter Fudge Recipe

Servings:

Calories: 257kcal

Ingredients

½ cup brown sugar, packed
2 cups sugar
4 tablespoons butter
½ cup milk
1 cup peanut butter
1 cup mini marshmallows

Instructions

First, test your candy thermometer: place it in boiling water, where it should read 212°F. If it reads lower, subtract the difference from 236°F and use that lower number as your target. Then boil both sugars, butter, and milk in a pot until it reaches 236°F (or your adjusted target), and immediately stop.
Add in the peanut butter and marshmallows and whip until it starts to thicken.
Pour into a buttered 8x8-inch pan. You could also line the pan with parchment paper to make it even easier to lift the fudge out if you’d like to.
It takes about one to two hours for the fudge to harden completely. Wait until cooled to room temperature and slice into squares.

Notes

Make sure you have a good candy thermometer to precisely measure the temperature of the mixture.
You could also line the baking dish with parchment paper or aluminum foil to make it even easier to take out if you’d like to.
To help cut the fudge after chilling, score a grid on the top of the fudge when it is barely set but still warm.

Nutrition