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Old-Fashioned Peanut Butter Fudge (Creamy, Rich & Easy)

Updated: Dec 24, 2025


Stack of peanut butter fudge pieces on a beige plate, surrounded by more pieces. Set on a wooden surface with warm lighting.

If you love peanut butter, this Peanut Butter Fudge will make your heart (and taste buds) happy! Smooth, creamy, and melt-in-your-mouth delicious, it’s one of those timeless recipes that never goes out of style.

Perfect for gifting, parties, or sneaking a square with your afternoon coffee, this fudge is quick to make and always a crowd favorite. Can’t get enough of that chocolate-peanut butter combo? Try Chocolate Fudge for a classic treat that melts in your mouth. For something warm from the oven, Caramel Pecan Sweet Rolls are pure comfort.

Recipe Card

Servings: 36 pieces Prep Time: 10 minutes Cook Time: 10 minutes Chill Time: 2 hours Total Time: 2 hours 20 minutes

Ingredients

  • 1 cup unsalted butter

  • 1 cup creamy peanut butter

  • 1 teaspoon vanilla extract

  • ¼ teaspoon salt

  • 3 ¾ cups powdered sugar

Instructions

  1. Prepare the Pan: Line an 8x8-inch baking pan with parchment paper or foil, leaving an overhang for easy removal.

  2. Melt the Base: In a medium saucepan, melt the butter and peanut butter together over low heat, stirring constantly until smooth.

  3. Add Flavor: Remove from heat. Stir in vanilla extract and salt.

  4. Mix in Sugar: Gradually whisk in powdered sugar, 1 cup at a time, until the mixture is smooth and thick.

  5. Pour and Set: Spread the mixture evenly into the prepared pan. Smooth the top with a spatula.

  6. Chill: Refrigerate for at least 2 hours or until the mixture is firm. Cut into small squares and enjoy!

Tips for Perfect Peanut Butter Fudge

  • Use creamy peanut butter for a smooth texture (avoid natural brands that separate easily).

  • Add crunchy peanut butter for a fun texture variation.

  • Sprinkle with sea salt or drizzle with melted chocolate for a gourmet touch.

  • Store fudge in an airtight container at room temperature for up to 1 week, or refrigerate for longer freshness.

Final Thoughts

This Old-Fashioned Peanut Butter Fudge is pure comfort — rich, sweet, and bursting with peanut butter goodness. Whether you’re making it for the holidays, a bake sale, or a late-night craving, it’s the perfect quick dessert that’s guaranteed to impress.

FAQ

Q: Can I make this without a candy thermometer? Yes — peanut butter fudge is usually no-fail and doesn’t require boiling to a specific temperature.

Q: What type of peanut butter is best? Use creamy, shelf-stable peanut butter. Natural peanut butter can cause the fudge to separate.

Q: Can I add chocolate to this recipe? Absolutely — swirl melted chocolate on top or fold in chocolate chips.

Q: Why is my fudge crumbly? This happens if the mixture cools too quickly or isn’t mixed thoroughly. Add a little warm milk to fix the texture.

Q: How should I store peanut butter fudge? Store in an airtight container for 1 week or freeze up to 3 months.

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