Creamy, decadent, and surprisingly simple, this chocolate peanut butter fudge needs just three ingredients and a few minutes in the microwave to prepare. The classic pairing of chocolate and peanut butter delivers a rich, satisfying treat that’s perfect for gifts, holiday dessert tables, or a weeknight sweet fix.

✔️ Quick Recipe Overview
Why this recipe shines: The balance of peanut butter and chocolate is spot on. It comes together quickly yet tastes like a labor of love.
Time: 10 minutes active, about 4 hours to chill.
Pan: 8×8 inch recommended.
I make fudge every year and always keep a batch on hand to share. It’s easy to portion into festive boxes for neighbors, coworkers, and teachers, and it travels well in the fridge. If you love both chocolate and peanut butter, this version is a reliable crowd-pleaser.
ℹ️ Why This Recipe Works
1. Only three ingredients are required.
2. It can be made in the microwave, cutting prep time dramatically.
3. No baking required—ready to chill in about 10 minutes of hands-on time.
🛒 Ingredients You’ll Need

This fudge relies on sweetened condensed milk to provide a smooth, creamy texture and to bind the chocolate and peanut butter together. Use your favorite chocolate chips—semi-sweet, milk, or dark all work well. Smooth peanut butter gives a silky layer; choose chunky if you prefer more texture.
Optional add-ins include chopped nuts (peanuts, pecans, almonds), shredded coconut, dried cherries, or even a handful of white chocolate or butterscotch chips. Mix-ins are an easy way to customize the flavor and texture without changing the basic technique.
🍫 Combining Peanut Butter and Chocolate
There are a few ways to arrange the layers: create two distinct layers—one chocolate, one peanut butter—or make a solid chocolate base and swirl the peanut butter on top. Another option is to blend the chocolate and peanut butter together with all the condensed milk for a single marbled or uniform layer. All approaches are simple and yield delicious results.


To make attractive swirls, spoon alternating dollops of chocolate and peanut butter into the pan and drag a knife through several times. The swirl technique creates a marbled appearance that looks gourmet with minimal effort.

👩🍳 Using a Microwave to Make Fudge
The microwave speedily melts the chocolate and softens the peanut butter, so prep time is minimal. If you don’t have a microwave, melt the mixtures gently on the stovetop in two small saucepans or use a double boiler for the chocolate to prevent scorching. Microwaves vary in power, so watch and stir frequently to avoid overheating.
📋 Step-by-Step Recipe Instructions
Step 1: Line an 8×8 inch pan with aluminum foil or parchment and spray lightly with cooking spray.
Step 2: In a microwave-safe bowl, combine 1 cup peanut butter with half (about 7 ounces) of the sweetened condensed milk. Microwave 1 minute 30 seconds, stirring every 30 seconds, until smooth. Set aside.
Step 3: In a separate microwave-safe bowl, combine a 12-ounce bag of chocolate chips with the remaining condensed milk. Microwave 1 minute, stirring at the 30-second mark, until smooth.
Important note: Both mixtures should be smooth but slightly thick—easy to stir but not watery. If a mixture becomes grainy or very stiff, it was likely overheated.

Step 4: Pour the chocolate layer into the prepared pan and spread evenly.
Step 5: Add the peanut butter mixture on top and spread gently. For a marbled effect, run a knife through the layers to swirl. Lightly spray the knife with cooking spray for cleaner cuts.
Step 6: Cover and refrigerate at least 3–4 hours or overnight until completely set. Lift the fudge from the pan using the foil or parchment and cut into small squares.
🙋 Recipe FAQs
Melt the chocolate chips together with half the sweetened condensed milk until smooth. The peanut butter is melted separately with the remaining condensed milk.
Yes. If doubling, use a 9×13 inch pan for best results.
💭 Expert Tips
- Slice fudge with a sharp chef’s knife for clean edges.
- Warm the knife under hot water, dry it, then slice—this prevents cracking and sticking.
- Cut while cold; room-temperature fudge is softer and harder to slice neatly.
- Store pieces in an airtight container in the refrigerator. Separate layers with parchment or wax paper to prevent sticking.
- Properly stored, refrigerated fudge will keep 2–3 weeks.
🍽️ Let’s Make More Fudge!
This basic microwave method is adaptable to many flavors—try cookie butter, dried fruit, or chopped candies to create different versions. The technique is the same: melt, layer or swirl, chill, and cut. If you enjoy experimenting, mix in toasted nuts or coconut for extra texture and flavor.

Chocolate Peanut Butter Fudge
Creamy and rich, this easy fudge uses just three ingredients and a short stint in the microwave to get delicious results.
Course: Dessert
Cuisine: American
Prep Time: 10 minutes
Refrigerate: 4 hours
Total Time: 4 hours 10 minutes
Servings: 36 squares
Calories: 77 kcal per square
Author: Amanda Mason
Ingredients
- 1 (12 ounce) bag semi-sweet chocolate chips
- 1 cup peanut butter
- 1 (14 ounce) can sweetened condensed milk
Instructions
- Line an 8×8 inch pan with foil or parchment and spray lightly with cooking spray.
- In a microwave-safe bowl, combine 1 cup peanut butter with half the sweetened condensed milk. Microwave 1 minute 30 seconds, stirring every 30 seconds, until smooth. Set aside.
- In a separate microwave-safe bowl, combine the chocolate chips with the remaining condensed milk. Microwave 1 minute, stirring at 30 seconds, until smooth.
- Pour the chocolate mixture into the prepared pan. Add the peanut butter mixture on top and spread evenly. Create swirls with a knife if desired.
- Cover and refrigerate 3–4 hours or overnight until firm. Lift out the fudge and cut into squares.
- Store in an airtight container in the refrigerator up to 2–3 weeks.
Notes
- If you don’t have a microwave, melt each mixture gently on the stovetop or use a double boiler for the chocolate.
- Use smooth or chunky peanut butter depending on your texture preference.
- Dark chocolate works well if you prefer a less sweet balance.