Peanut butter lovers, rejoice! This 2 Ingredient Peanut Butter Fudge is one of the simplest desserts you can make at home. With just creamy peanut butter and vanilla frosting, you can create a decadent, melt-in-your-mouth fudge that tastes like it came from a candy shop.
1. Peanut Butter Fudge Recipe (Yield: 24 Servings)
Ingredients
- 1 ½ cups peanut butter (creamy or crunchy, as desired)
- 14 ounces vanilla frosting (1 standard can)
Instructions
Step 1: Prepare your pan
Start by lining an 8×8-inch baking dish with parchment paper or aluminum foil. This makes removing the fudge easier once it sets. Lightly spray the lining with nonstick cooking spray to ensure a smooth release later.
Step 2: Melt the peanut butter
In a microwave-safe bowl, add 1 ½ cups of peanut butter. Heat it in the microwave for about 45 seconds to 1 minute, or until it becomes warm and slightly runny. Stir it with a spatula to ensure a smooth consistency.
Alternatively, you can melt the peanut butter on the stovetop using a double boiler over low heat, stirring frequently to prevent burning.
Step 3: Add the frosting
Remove the lid and foil seal from the vanilla frosting container. Microwave the frosting for 30–40 seconds until it becomes pourable. Pour the warm frosting into the bowl of melted peanut butter.
Use a spatula or whisk to mix them together until the mixture is fully combined and silky smooth. The combination should be uniform in color and texture — this ensures your fudge will set evenly.
Step 4: Pour into the pan
Quickly pour the peanut butter mixture into your prepared baking pan. Spread it evenly using a spatula to smooth the top. You can tap the pan gently on the counter to release any air bubbles.
Step 5: Chill the fudge
Place the pan in the refrigerator for at least 2 hours, or until the fudge is firm enough to cut. For best results, let it chill overnight — this helps the flavors blend and ensures a perfect texture.
Step 6: Cut and serve
Once set, lift the fudge out of the pan using the parchment paper edges. Place it on a cutting board and use a sharp knife to cut it into 24 small squares.
Your creamy peanut butter fudge is now ready to enjoy! Store leftovers in an airtight container in the refrigerator for up to one week, or freeze them for up to three months.

2. Tips for Perfect Homemade Peanut Butter Fudge
Getting the perfect texture and flavor from your peanut butter fudge is simple when you keep a few key tips in mind.
First, always use good-quality peanut butter. Creamy peanut butter gives the smoothest texture, while chunky peanut butter adds crunch for extra texture. Avoid natural peanut butter with separated oils, as it may make your fudge greasy or fail to set properly.
When it comes to frosting, vanilla frosting provides the best sweet and balanced flavor. However, you can experiment with other frosting flavors, such as chocolate, cream cheese, or even maple, for unique variations.
If you want a more gourmet touch, consider stirring in add-ins like mini chocolate chips, crushed pretzels, or chopped nuts before the fudge sets. For a festive look, sprinkle sea salt, cocoa powder, or drizzle melted chocolate over the top.
Temperature control is another key. Make sure both the peanut butter and frosting are warm but not hot when combined. If one mixture is too hot, it can cause separation or an oily layer on top of the fudge.
Finally, be patient with the chilling time. The fudge needs at least two hours in the fridge to firm up properly. If you rush this step, you may end up with soft fudge that’s difficult to cut cleanly.
3. Frequently Asked Questions
Can I use homemade peanut butter for this fudge?
You can, but it’s best to use commercial peanut butter for consistent results. Homemade peanut butter often has a looser texture and natural oil separation, which can affect how the fudge sets.
Do I need to refrigerate peanut butter fudge?
Yes, refrigerating helps the fudge set firmly and last longer. Store it in an airtight container in the fridge for up to a week. If you prefer a softer texture, you can let it sit at room temperature for a few minutes before serving.
Can I make this fudge without a microwave?
Absolutely. Simply melt the peanut butter and frosting gently on the stovetop over low heat using a double boiler or by placing the bowls over simmering water. Stir continuously to prevent scorching.
Can I use chocolate frosting instead of vanilla?
Yes! Chocolate frosting creates a delicious chocolate-peanut butter fudge that’s rich and indulgent. You can also mix half chocolate and half vanilla frosting for a marbled look.
How do I store or freeze peanut butter fudge?
To freeze, wrap the cut fudge pieces individually in wax paper or plastic wrap, then store them in a freezer-safe bag or container. Thaw in the refrigerator overnight before serving.
Why didn’t my fudge set properly?
If your fudge turned out too soft, it might be due to using natural peanut butter or not chilling it long enough. Make sure to use creamy, shelf-stable peanut butter and allow sufficient cooling time.

4. Nutrition Information
| Nutrient | Amount per Serving (1 piece) |
|---|---|
| Calories | 150 kcal |
| Total Fat | 9 g |
| Saturated Fat | 2 g |
| Trans Fat | 0 g |
| Cholesterol | 0 mg |
| Sodium | 80 mg |
| Total Carbohydrates | 15 g |
| Dietary Fiber | 1 g |
| Total Sugars | 13 g |
| Protein | 3 g |
This 2 Ingredient Peanut Butter Fudge is a game-changer for anyone who loves quick and easy desserts. With no baking required and minimal cleanup, it’s the perfect recipe for busy weeknights, potlucks, or holiday treats. The rich peanut butter flavor combined with the creamy sweetness of frosting makes every bite irresistible.