Never-Fail 4-Ingredient Peanut Butter Fudge

Introduction

Few things compare to the creamy, melt-in-your-mouth goodness of homemade fudge. While some fudge recipes can feel intimidating with candy thermometers and complex steps, this Never-Fail 4-Ingredient Peanut Butter Fudge is refreshingly simple. With just sugar, milk, peanut butter, and vanilla, you can create a dessert that tastes like you’ve spent hours in the kitchen. Whether you’re preparing a holiday treat, a sweet gift, or just satisfying a craving, this recipe is guaranteed to impress with minimal effort.

My recipe story

I still remember the first time I tried making fudge. I was nervous, convinced it would be a sticky, crystallized mess. But then, a family friend shared this peanut butter fudge recipe with me, promising that it would never fail. She was right! The first batch turned out so smooth and creamy that it became a tradition in my kitchen. Over the years, this recipe has been shared with friends at potlucks, gifted to neighbors during the holidays, and even enjoyed at midnight when a sweet craving struck. It has become one of those recipes that feels like home every time I make it.

Ingredient breakdown

This recipe shines because of its simplicity. Each ingredient plays a key role in achieving that perfect fudge consistency and flavor.

Sugar: Granulated sugar provides sweetness and structure. When heated with milk, it creates the base syrup that thickens into fudge. It’s important to let the sugar dissolve fully to avoid grainy texture.

Milk: The milk helps dissolve the sugar and adds creaminess to the fudge. Whole milk works best for richness, but you can also use 2% milk if needed.

Peanut Butter: The star of the show! Creamy peanut butter gives the fudge its smooth texture and nutty flavor. Natural peanut butter can be used, but for best results stick to the classic no-stir varieties.

Vanilla Extract: A small teaspoon of vanilla enhances the sweetness and rounds out the flavor, adding depth to the peanut butter.

Equipment you’ll need

• Medium saucepan
• Wooden spoon or heatproof spatula
• Measuring cups and spoons
• 8×8-inch baking dish
• Parchment paper or nonstick spray
• Sharp knife for cutting squares

Step-by-step directions

Step 1: Line your baking dish with parchment paper or lightly grease it with nonstick spray. This ensures that the fudge will release easily after cooling, giving you clean, sharp squares.

Step 2: In a medium saucepan, combine the sugar and milk. Place over medium heat and stir continuously until the sugar has completely dissolved. This prevents crystallization and ensures a smooth texture.

Step 3: Bring the mixture to a gentle boil, stirring frequently. Allow it to bubble for about 2–3 minutes until it thickens slightly. Be careful not to overcook—this recipe doesn’t require exact candy temperatures.

Step 4: Remove the saucepan from the heat and immediately stir in the peanut butter and vanilla extract. Stir quickly until the mixture is smooth, creamy, and fully combined.

Step 5: Pour the fudge mixture into the prepared baking dish, spreading it evenly with a spatula. Work quickly, as the fudge will start to firm up as it cools.

Step 6: Let the fudge cool completely at room temperature, then transfer it to the refrigerator for about an hour to set. Once firm, cut into squares and enjoy.

Variations & substitutions

This fudge is wonderfully versatile. Here are a few creative spins:

• Chocolate Swirl: Melt 1/2 cup chocolate chips and swirl them into the peanut butter fudge before setting.
• Nut Crunch: Stir in chopped peanuts, pecans, or walnuts for added texture.
• Sea Salt Topping: Sprinkle flaky sea salt over the top for a sweet-salty contrast.
• Marshmallow Twist: Add mini marshmallows just before pouring into the pan for a chewy surprise.

Storage, freezing & make-ahead

Peanut butter fudge stores beautifully. Keep it in an airtight container at room temperature for up to 1 week, or refrigerate for up to 2 weeks. For longer storage, wrap pieces individually in parchment and freeze in a sealed container for up to 3 months. Thaw at room temperature before serving. You can easily prepare this fudge a day or two ahead of parties or holidays—it actually tastes even better once it has had time to set fully.

Serving ideas & pairings

This peanut butter fudge is delicious on its own, but it pairs well with other flavors and treats:

• Serve alongside chocolate fudge for a duo dessert tray.
• Pair with coffee or hot cocoa for a cozy afternoon treat.
• Cut into small squares and package in gift boxes for holidays.
• Use as a topping on vanilla ice cream for extra indulgence.
• Bring to potlucks as a guaranteed crowd-pleaser.

FAQ

Can I use natural peanut butter? Yes, but make sure it’s well-stirred and not too oily. Traditional peanut butter works best for consistency.

Do I need a candy thermometer? No! This recipe is foolproof and doesn’t require precise temperature monitoring.

Can I double the recipe? Absolutely. Use a 9×13-inch pan for larger batches.

How long does it take to set? Typically 1–2 hours in the fridge, but overnight chilling ensures perfect firmness.

Why is my fudge grainy? If the sugar didn’t fully dissolve before boiling, the texture can turn gritty. Be patient when dissolving the sugar.

Final thoughts

This Never-Fail 4-Ingredient Peanut Butter Fudge is the kind of recipe that every home baker should keep in their back pocket. It’s quick, easy, and incredibly delicious—perfect for sharing with friends, gifting during the holidays, or simply treating yourself. With just a few pantry staples, you can whip up a dessert that feels indulgent and homemade without the fuss. Once you try it, you’ll find yourself making it again and again, because some recipes are just too good not to repeat.

Never-Fail 4-Ingredient Peanut Butter Fudge

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• Author: Sarah White
• Total Time: 15 minutes plus cooling
• Yield: About 25 squares 1x
• Diet: Vegetarian

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Description

Smooth, creamy, and irresistibly rich, this peanut butter fudge is the easiest treat you’ll ever make. Perfect for holidays, gifts, or anytime cravings.

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Ingredients

Scale 1x2x3x

• 2 cups sugar
• 1/2 cup milk
• 3/4 cup creamy peanut butter
• 1 teaspoon vanilla extract

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Instructions

1. Line an 8×8-inch baking dish with parchment paper or lightly grease it. 
2. In a medium saucepan, combine sugar and milk. Stir over medium heat until sugar dissolves completely. 
3. Bring the mixture to a gentle boil for 2–3 minutes, stirring often, until slightly thickened. 
4. Remove from heat and stir in peanut butter and vanilla until smooth and creamy. 
5. Quickly pour into the prepared dish and spread evenly. 
6. Let cool at room temperature, then refrigerate for 1–2 hours until firm. Cut into squares and serve.

Notes

 Store in an airtight container at room temperature for up to 1 week, or refrigerate for up to 2 weeks. Freeze up to 3 months for make-ahead treats.

• Prep Time: 5 minutes
• Cook Time: 10 minutes
• Category: Dessert
• Method: Stovetop
• Cuisine: American