Easy 2-Ingredient Peanut Butter Fudge Recipe
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Easy 2-Ingredient Peanut Butter Fudge Recipe

ByLily Carter
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I’m excited to share this super simple, yet absolutely delicious Easy 2-Ingredient Peanut Butter Fudge Recipe with you. Sometimes the best treats come from the simplest combinations, and that’s exactly what you get here—just creamy peanut butter and sweet vanilla frosting turn into fudgy magic. It’s one of those recipes that feels fancy enough for guests but is so quick to whip up on a busy weeknight or when you want a sweet treat without the fuss.

I’ve made this fudge for potlucks, last-minute desserts, and even as a fun weekend project with my kids. What makes this Easy 2-Ingredient Peanut Butter Fudge Recipe so special is how it hits that perfect balance of creamy, sweet, and nutty—all from pantry staples you probably already have. Plus, you’ll love how foolproof it is, so even if you’re not a baker, you’ll have sweet success.

Ingredients You’ll Need

It’s truly amazing how two simple ingredients combine to create something so indulgent. Both peanut butter and vanilla frosting are smooth and sweet, which makes them a dream team in this fudge recipe. When shopping, look for creamy peanut butter for the best texture and a vanilla frosting that suits your sweetness preference.

  • Creamy peanut butter: I prefer a brand like Jif because it’s super smooth and gives the fudge that rich peanut flavor without any gritty bits.
  • Vanilla frosting: Betty Crocker and store-bought frostings work great here, just make sure it’s creamy and not whipped to keep the fudge dense and fudgy.

Variations

What I love about this Easy 2-Ingredient Peanut Butter Fudge Recipe is how easily it adapts. Feel free to tweak it to fit your mood or pantry! I often add a pinch of sea salt on top to balance the sweetness or stir in some mini chocolate chips for extra texture.

  • Chocolate peanut butter fudge: Add ¼ cup melted chocolate chips to the mix for a subtle chocolate twist—I tried this once for Valentine’s Day, and it was a hit.
  • Nutty crunch: Mix in chopped roasted peanuts for a satisfying crunch that contrasts the fudge’s creaminess.
  • Diet-friendly: Use a naturally sweetened peanut butter and a sugar-free vanilla frosting alternative to reduce sugar without sacrificing taste.

How to Make Easy 2-Ingredient Peanut Butter Fudge Recipe

Step 1: Mix the Peanut Butter and Frosting

Start by scooping your creamy peanut butter into a mixing bowl. Then, add the vanilla frosting. Using a sturdy spatula, fold and stir the ingredients together until the mixture is smooth and uniform. This shouldn’t take more than a few minutes. Avoid overmixing, which can make the fudge tough later on. The key is to get a creamy blend that’s just right for spreading.

Step 2: Press into Your Pan

Line an 8×8-inch pan with parchment or lightly grease it. Then, pour your peanut butter and frosting mixture into the pan. Use the spatula to press the mixture evenly into the corners and smooth the top. I like to run the spatula under warm water and dry it quickly before smoothing to get a silky finish. This little trick helps avoid stickiness on top.

Step 3: Chill Until Firm

Pop the pan into the fridge for at least 2 hours to let the fudge firm up. If you want it quicker, you can place it in the freezer, but keep an eye on it so it doesn’t get too hard to cut. The chilling is essential—this step ensures you’ll get that classic fudge texture that slices cleanly and melts in your mouth.

Instructions

  1. Prepare the Pan: Line an 8×8 inch baking pan with parchment paper or lightly grease it to prevent the fudge from sticking.
  2. Mix Ingredients: In a medium mixing bowl, combine the 18 oz of creamy peanut butter and the 16 oz of vanilla frosting. Use a spatula or electric mixer to blend thoroughly until smooth and creamy.
  3. Transfer to Pan: Pour the mixture into the prepared baking pan and use the spatula to spread it evenly, smoothing the surface.
  4. Chill the Fudge: Place the pan in the refrigerator for at least 2 hours or until the fudge is firm and set.
  5. Cut and Serve: Once set, remove the fudge from the pan using the parchment paper edges and cut into squares. Serve chilled or at room temperature.

Notes

  • You can substitute vanilla frosting with cream cheese frosting for a tangier flavor.
  • Store fudge in an airtight container in the refrigerator for up to one week.
  • For a nuttier texture, consider adding chopped peanuts to the mixture before chilling.