Growing up, one of my fondest memories was sneaking into the kitchen while my Nonna stirred a bubbling pot of sugar and milk for her famous old-fashioned fudge. But unlike her rich chocolate version, there was one treat I always begged for—Peanut Butter Fudge. Smooth, creamy, and impossibly decadent, this all-American delight is simplicity and nostalgia in a single bite. Today, I’m sharing my spin on that beloved classic—a recipe you can whip up any time of the year, no candy thermometer required.
Why You’ll Love This Peanut Butter Fudge
Whether you’re making a sweet treat for a summer gathering or gifting homemade goodies during the holidays, this Peanut Butter Fudge is your go-to recipe. Here’s why it stands out:
- No baking required – Just a stovetop and a mixing bowl.
- Simple ingredients – Only 3 core items.
- Quick preparation – Ready to set in minutes.
- Rich, creamy texture – Thanks to creamy peanut butter and a perfect sugar-to-milk ratio.

Ingredients (Yields 7 Servings)
- 2 cups granulated sugar
- ½ cup whole milk
- 1 cup creamy peanut butter (unsweetened or lightly sweetened)
- 1 tsp vanilla extract (optional, for added depth)
- A pinch of salt (to balance the sweetness)
Equipment You’ll Need
- Heavy-bottom saucepan
- Wooden spoon or silicone spatula
- 8×8-inch baking dish
- Parchment paper
- Measuring cups
Step-by-Step Instructions
Step 1: Prepare Your Dish
Line your baking dish with parchment paper, leaving a bit of overhang on the sides. This will make it easy to lift the fudge once it’s set.
Step 2: Combine Sugar and Milk
In a medium saucepan over medium heat, stir together the granulated sugar and whole milk. Bring the mixture to a gentle boil, stirring constantly to prevent burning.
Pro Tip: Use a heavy-bottomed pan to ensure even heating and avoid caramelizing the sugar too quickly.
Step 3: Boil and Bubble
Allow the mixture to boil for about 2.5 to 3 minutes, or until the sugar is fully dissolved and the liquid has thickened slightly. Stir occasionally but do not walk away—it can bubble over quickly.
Step 4: Add Peanut Butter and Vanilla
Remove the saucepan from the heat. Immediately stir in the creamy peanut butter, vanilla extract, and a pinch of salt. Stir vigorously until the mixture is completely smooth and well combined.
Step 5: Pour and Smooth
Pour the fudge into your prepared pan. Smooth the top with a spatula and give the pan a few gentle taps on the counter to release air bubbles.
Step 6: Set and Slice
Let the fudge sit at room temperature for 1–2 hours, or refrigerate for about 45 minutes until firm. Once set, lift it out using the parchment and cut into squares.
Storage Tips
- Room Temp: Store in an airtight container for up to 1 week.
- Fridge: Keeps well for up to 2 weeks. Let it sit for a few minutes before serving for best texture.
- Freezer: Can be frozen for up to 2 months. Wrap pieces individually for easy snacking.
Serving Suggestions
- Summer Treats: Pair with lemonade or iced coffee for a no-bake dessert that won’t heat up your kitchen.
- Winter Comfort: Serve warm fudge squares with hot cocoa or mulled cider.
- Gift-Worthy: Wrap in wax paper or tuck into small tins for perfect holiday or hostess gifts.
Flavor Variations
Want to switch it up? Try these easy adaptations:
- Chocolate Swirl: Drop spoonfuls of melted chocolate over the top and swirl before it sets.
- Nutty Crunch: Stir in ½ cup chopped roasted peanuts for extra texture.
- Espresso Infusion: Add ½ tsp espresso powder to the boiling milk for a sophisticated twist.
- Sea Salt Finish: Sprinkle flaky sea salt on top just before setting for a savory contrast.
Common Questions About Peanut Butter Fudge
Can I use natural peanut butter?
Yes, but make sure it’s well stirred. Natural peanut butter may result in a slightly softer texture.
Why is my fudge grainy?
This usually happens if the sugar isn’t fully dissolved. Be sure to boil it long enough in step 3.
Can I double the recipe?
Absolutely! Use a 9×13-inch pan and double all ingredients. Just be sure to increase boiling and setting times slightly.
Why This Fudge Works Year-Round
Peanut butter fudge isn’t just for the holidays. Its balance of creamy richness and quick prep time makes it ideal for:
- Summer BBQs
- Picnic baskets
- After-school snacks
- Winter potlucks
- Christmas cookie platters
Its versatility is part of its charm—no season is the wrong season for peanut butter fudge.
Make It a Family Tradition
Like my Nonna’s kitchen where it all began, this recipe is made for memory-making. Get the kids involved in stirring, let them lick the spoon (responsibly!), and teach them the joy of homemade treats. One batch, seven slices, countless smiles.