No-Bake Peanut Butter Powdered Sugar Fudge

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A simple, creamy fudge made with smooth peanut butter, butter, vanilla, and powdered sugar — perfect for an easy homemade treat. This american-inspired desserts ready in about 15 minutes pairs smooth peanut butter, (4 tbsp) unsalted butter, vanilla extract for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 150 calories and feeds 16, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart.

★ 4.5 (8 ratings) Prep: 10 min Cook: 5 min Serves 16 American cuisine 150 cal/serving
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Ingredients

Instructions

  1. Step 1: In a medium saucepan over low heat, melt 1/4 cup (4 tbsp) unsalted butter together with 1 cup smooth peanut butter, stirring constantly until the mixture is smooth and well combined, about 3 minutes.
  2. Step 2: Remove the pan from heat and stir in 1 tsp vanilla extract until fully incorporated.
  3. Step 3: Gradually add 2 cups powdered sugar, mixing with a wooden spoon until the mixture thickens and forms a dough-like consistency that holds together, about 2 minutes.
  4. Step 4: Transfer the fudge mixture into an 8x8-inch lined baking dish, pressing it evenly to about 1/2-inch thickness.
  5. Step 5: Refrigerate for at least 2 hours until firm, then cut into small squares and serve chilled.

Frequently asked questions

How long does No-Bake Peanut Butter Powdered Sugar Fudge take to make?

Total time is about 15 minutes (10 min prep + 5 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover No-Bake Peanut Butter Powdered Sugar Fudge?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep smooth peanut butter from drying out.

Can I substitute ingredients in No-Bake Peanut Butter Powdered Sugar Fudge?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale No-Bake Peanut Butter Powdered Sugar Fudge for a different number of people?

The recipe is written for 16 servings. Multiply each ingredient by (your serving target / 16). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with No-Bake Peanut Butter Powdered Sugar Fudge?

American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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