This 3 ingredient peanut butter fudge is unbelievably easy to make, requiring just a few minutes of active time. It’s made in the microwave and it’s basically foolproof!
How easy can peanut butter fudge be? This easy: three ingredients, made in the microwave, and done in a matter of minutes.
But don’t think just because this 3-ingredient peanut butter fudge is so easy to make that it lacks flavor or fudginess. It doesn’t.
It’s super creamy, packed with peanut butter flavor, and will satisfy allllll your sugary cravings!
Why you’ll love this 3 ingredient peanut butter fudge:
- You don’t need a candy thermometer or other special equipment
- It’s really easy and basically foolproof
- The whole recipe is made in the microwave!
How to make 3-ingredient peanut butter fudge
Prepare yourself for the easiest fudge on record. . .(it’s so easy it’s almost not even a recipe!)
- Combine peanut butter and white chocolate chips in a microwave-safe bowl
- Microwave in 30-second intervals, stirring after each, until smooth
- Add sweetened condensed milk
Baker’s tip: spray your measuring cups lightly with cooking spray before you measure peanut butter so it slides out of the cup more easily; you can spray the spatula or spoon you use to scoop the peanut butter as well.
This works for things like honey and corn syrup too!
- Stir until the condensed milk is totally combined
- Scrape into an 8-inch square baking dish
Then just refrigerate for a couple of hours until set; it might not even take a full 2 hours to set so feel free to check on it before then.
Et voila—3 ingredient peanut butter fudge is done and ready to be sliced, served, and devoured.
If you have leftovers you can store them in an airtight container in the fridge for up to a week.
You can also store leftovers in the freezer for about two months; don’t thaw the fudge before serving, just eat it frozen.
- It takes a lot of stirring for the white chocolate chips to melt completely; if you get impatient it’s fine to leave a few little chunks of unmelted chocolate
- If you don’t have a microwave you can melt the chocolate chips and peanut butter in a small saucepan set over low heat—stir constantly until the mixture is melted, then remove from the heat to stir in the sweetened condensed milk.
- Be 100 percent sure you use sweetened condensed milk. Evaporated milk is not a substitute for sweetened condensed and if you use evaporated milk your easy peanut butter fudge will not set. (See below for more info about this.)
- You can substitute regular chocolate chips or even peanut butter chips for the white chocolate; I liked fudge made with white chocolate best because the flavor fades into the background and allows the pb flavor to pop
- You can use crunchy peanut butter and/or mix chopped peanuts (salted are best) into the fudge if you like crunch
- If you like salty sweets, sprinkle some flaky sea salt over the fudge as soon as you scrape it into the pan
PS, despite how that pic at the top of the post looks, in real life my hand doesn’t look like a lobster claw. PPS, you should definitely make yourself a batch of 3 ingredient peanut butter fudge immediately.
Can I substitute evaporated milk for sweetened condensed milk?
In short, sweetened condensed milk is evaporated milk that has sugar added. It’s significantly thicker than its evaporated counterpart and one is not a substitute for the other.
(Interesting substitution note that has no bearing on this recipe: in most recipes, you can add an equal amount of water to evaporated milk and substitute it for regular milk.)
But to reiterate: you cannot substitute evaporated milk for sweetened condensed milk in this recipe or in any other recipe. They’re very different and your recipe will not turn out right
Did you make this 3-ingredient peanut butter fudge? That’s great! Let me know what you think with a comment and a rating below. Then post a pic on Insta–tag @theitsybitsykitchen so I can see your delicious creations!
This easy peanut butter fudge is made with just three ingredients that you probably already have on hand. It's made in the microwave and is basically foolproof!
- 12 ounces white chocolate chips
- 1 1/2 cups creamy peanut butter don’t use natural
- 1 14-ounce can sweetened condensed milk
- Lightly spray an 8-inch square baking pan with cooking spray, then line the bottom with waxed paper or parchment paper. Set aside.
- Combine the white chocolate chips and peanut butter in a large microwave-safe bowl. Microwave in 30-second intervals, stirring well after each interval, until the chocolate chips and peanut butter are both melted and the mixture is smooth.
- Add the sweetened condensed milk and stir until fully combined. Scrape into the prepared baking dish.
- Refrigerate until set, about 2 hours. Slice and serve. Uneaten fudge can be stored in an airtight container for up to 1 week or in the freezer for about two months. If you freeze your fudge, you don’t need need to thaw it before serving. It’s actually delicious frozen.
- Spray your measuring cups lightly with cooking spray before you measure the peanut butter so it slides out of the cup more easily; you can spray the spatula or spoon you use to scoop the peanut butter as well.
- It takes a lot of stirring for the white chocolate chips to melt completely.
- If you don’t have a microwave you can make the fudge on the stovetop over low heat. Stir constantly and remove from the heat to stir in the sweetened condensed milk.
- Be sure to use sweetened condensed milk, NOT evaporated milk. If you use evaporated milk your fudge will not set.
- Substitute regular chocolate chips or even peanut butter chips for the white chocolate; I liked fudge made with white chocolate best.
- You can use crunchy peanut butter and/or mix chopped peanuts (salted are best) into the fudge if you like crunch.
- Sprinkle some flaky sea salt over the fudge as soon as you scrape it into the pan for an extra salty-sweet treat.