I don’t say this lightly: this is the easiest fudge you will ever make. No candy thermometer. No scorched pots. No patience required. Just peanut butter, butter, and powdered sugar doing a delicious little magic trick in your microwave. Dangerously addictive. You’ve been warned.
Ingredients

Makes 16 small squares.
- 1 cup (250g) creamy peanut butter (regular, not natural/drippy)
- ½ cup (1 stick / 115g) salted butter
- 2 cups (240g) powdered sugar
- 1 tsp vanilla extract (optional but recommended)
Optional add-ins: ¼ cup crushed peanuts, chocolate chips on top, or a swirl of melted chocolate.
Step-by-Step Instructions
Step 1: Prep
- Line an 8×8 inch pan with parchment paper (leave overhang for easy lifting).
Step 2: Melt
- In a large microwave-safe bowl, combine peanut butter and butter.
- Microwave for 45 seconds. Stir. Microwave another 20–30 seconds until completely smooth and melted.
Step 3: Mix
- Stir in vanilla (if using). Add powdered sugar and mix with a spatula until fully combined. It will look crumbly at first, then come together into a thick, smooth dough.
Step 4: Press & Chill
- Press mixture firmly into prepared pan. Smooth the top with a spatula or your hands.
- Refrigerate for 1–2 hours until completely firm.
Step 5: Cut & Serve
- Lift out of pan using parchment. Cut into small squares (it’s rich!). Serve cold or at room temperature.
Summary
Prep Time: 5 min | Chill Time: 1 hour | Total: 65 min
Yield: 16 pieces | Difficulty: Extremely Easy
Storage Notes
Fridge: 2 weeks in an airtight container. Freezer: 3 months (layer with parchment). Eat straight from the freezer—it’s like peanut butter candy.


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