2 Ingredient Peanut Butter Fudge

2 Ingredient Peanut Butter Fudge may be the most talked about dessert at your next get-together.

You will be amazed that this creamy and smooth peanut butter fudge recipe requires only two ingredients: peanut butter and frosting.

You will first quickly mix together a small jar of peanut butter and vanilla frosting together in a microwavable bowl.

Next, stir the heated mixture to make sure it has reached a pourable consistency.

Finally, you will pour the melted peanut butter and frosting mixture into a lined 8x8 pan before cooling it in the refrigerator before serving. It is so easy!

Why you’ll love this recipe

• You can make this peanut butter fudge recipe with just two ingredients. This 2 Ingredient Peanut Butter Fudge recipe does not require condensed milk, butter, or powdered sugar. You'll simply use peanut butter and a jar of icing or frosting.
• The recipe only requires a microwave. You won't even use your stove or oven to make this easy peanut butter fudge with frosting recipe. This is a no bake peanut butter fudge recipe. The ingredients are heated for about a minute in the microwave before pouring in a lined pan.

2 Ingredient Peanut Butter Fudge Ingredients

• Peanut butter
• Jar of traditional vanilla frosting

Ingredient Notes

Peanut Butter: Peanut butter is more American than apple pie (according to NPR). Yes, Americans love peanut butter! Use creamy or crunchy peanut butter for this peanut butter fudge with frosting recipe. I use an 18 ounce jar of Aldi's Peanut Delight Creamy Peanut Butter when I make this recipe.

Frosting: Traditional vanilla frosting or icing is used in this recipe. I used Aldi's Baker's Corner Vanilla Frosting. Do not use "whipped" frosting since the peanut butter fudge will not set up correctly. However, other frosting flavors can be used, such as chocolate flavored frosting.

How to Make 2 Ingredient Peanut Butter Fudge: Step by Step Instructions

This peanut butter fudge may be one of the easiest fudge recipes you make. It only requires two ingredients and you only use your microwave.

Step 1: Empty both the jar of peanut butter and the white icing into a glass bowl. Use a spatula to scrape the contents out if necessary.

Step 2: Mix the peanut butter and the white icing together until it is generally combined. This helps it heat evenly in the microwave. (You will stir the mixture again after it is heated.)

Step 3: Microwave for 1 minute. Stir the mixture together again. The mixture should now be heated enough to be pourable. If the mixture is still difficult to stir, microwave in 20 second increments. Do not overcook.

Step 4: Pour the mixture into an 8×8 pan lined with parchment paper. Cover and refrigerate for at least two hours, or until the fudge stiffens enough to be cut into squares.

📖 Recipe

Recipe Tips & Tricks

• Do not overcook the frosting and peanut butter mixture or it may not set up correctly. The mixture should be heated just enough to be pourable, which is usually about one minute. If the mixture is overheated, it will not set up correctly.
• Make sure to use traditional frosting. Do not use "whipped" frosting since the texture is different and the fudge may not set up properly. 
• Mix in any add-ins after the mixture has been heated, but before you pour it into the 8x8 pan.
• Add any toppings after the mixture has been poured into the 8x8 pan, but before you refrigerate the 2 Ingredient Peanut Butter Fudge.

Frequently Asked Questions

Can you use any type of frosting for 2 Ingredient Peanut Butter Fudge?

I have only tried this recipe with regular vanilla frosting/icing. However, I've read that regular chocolate frosting or any type of flavored frosting would work for this recipe as long as it isn't a different texture such as "whipped frosting."

Can you use natural peanut butter?

Do not use natural peanut butter to make the fudge. It is best to use regular creamy peanut butter or even regular crunchy peanut butter. Natural peanut butter tends to be too runny and will prevent the 2 Ingredient Peanut Butter Fudge bars from setting properly.

Storage & Reheating:

• Storage: Store the peanut butter fudge in the refrigerator if possible. The ingredients may become warm enough to lose some of its structure if the fudge is left at room temperature for too long.
• Freezing: The 2 ingredient peanut butter fudge can easily be frozen. Let the fudge set up in the refrigerator according to the recipe card. Next, cut the fudge into the serving portions you prefer. Finally, store the peanut butter fudge in a gallon freezer bag or in another air-tight container. Store in the freezer for up to 3 months. The best part about this fudge is it doesn't get too hard when freezing. You can easily grab a piece or two out of the freezer whenever you get a sweet craving and it will be ready to eat.

Additions and Substitutions

SUBSTITUTIONS

Chocolate frosting: You can use chocolate frosting instead of vanilla frosting if you prefer. Just remember to use a traditional chocolate frosting rather than a cream cheese flavored frosting or a whipped frosting.

Chunky peanut butter: A chunky peanut butter can be used instead of creamy peanut butter.

ADDITIONS

Nuts: You can try adding nuts to the fudge if you prefer the extra texture and flavor. Add the nuts after you have heated the peanut butter and the frosting mixture together for one minute. Stir the nuts into the mixture and pour into the 8x8 pan.

Toppings: The topping options are almost limitless. Add the desired toppings on the fudge after you pour it into the 8x8 pan, but before you put it in the refrigerator to cool. This helps the toppings settle into the top of the fudge as it cools so they don't fall off when serving. Some topping suggests are: nuts, sprinkles, marshmallows, pretzels, or Oreo pieces.

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