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Desserts · Part 2 of 3: Instructions

Rich and Creamy Peanut Butter Fudge Step-by-step instructions

A close-up of a square of peanut butter fudge being lifted from a ceramic dish with a small metal spatula.
Prep
Cook
Total
Serves
16
Includes 2 h resting

Before you start

Before beginning, ensure all ingredients are measured and ready on the counter to facilitate a smooth cooking process. Prepare the 8-inch ceramic dish by lining the bottom and sides with parchment paper, leaving an overhang on the edges to serve as handles.

Having the equipment clean and accessible is vital for working quickly once the fudge mixture reaches the correct consistency. Clear your workspace and ensure you have a sturdy spatula ready for the stirring process, as the mixture will thicken as it cools, requiring consistent movement to maintain the desired smooth, velvety texture throughout the entire batch.

Ingredients at a glance (2)
  • 1 cup creamy peanut butter
  • 1/2 cup unsalted butter

Instructions

Melting the base

  1. Melting the base
    Combine the creamy peanut butter and unsalted butter in a medium saucepan over low heat. Stir continuously until both ingredients are fully melted and incorporated into a smooth, uniform mixture. Ensure the heat remains low to prevent the peanut butter from scorching or separating during this initial melting phase.
    Look for The mixture is completely smooth and glossy.
    Tip Use a heavy-bottomed saucepan to distribute heat evenly.

The peanut butter and butter should be completely melted, forming a smooth, shiny, and uniform liquid. There should be no visible streaks or separated oil on the surface of the pan. Check that the heat is low enough to prevent any darkening or bubbling, as the goal is simply to melt the ingredients together gently. The mixture should look cohesive and glossy, indicating that the fats have successfully combined into a stable, smooth base that is ready for the next stage of the preparation process.

Smoothing the mixture

  1. Smoothing the mixture
    Remove the saucepan from the heat. Continue to stir the melted mixture vigorously with a spatula until the consistency becomes thick, dense, and velvety. This step is crucial for achieving the signature fudge texture, ensuring that the fats remain perfectly emulsified as the mixture begins to cool down slightly off the heat.
    Look for The mixture is thick and uniform.
    Tip Keep stirring to maintain the smooth texture.

The mixture should transform into a thick, heavy paste as it cools off the heat. It should look creamy and hold its shape slightly when moved with a spatula. Ensure that the stirring is consistent to prevent any lumps from forming as the fats begin to solidify.

The texture should be uniform throughout, appearing smooth and dense. This phase is critical for the final mouthfeel, so take the time to stir until the mixture is perfectly smooth and ready to be transferred into the prepared ceramic dish for setting.

Setting the fudge

  1. Setting the fudge
    Line the ceramic dish with parchment paper to allow for easy removal. Pour the fudge mixture into the prepared dish and spread it evenly to the edges using a spatula. Place the dish in the refrigerator and let it set for at least two hours before slicing into uniform squares for serving.
    Look for The fudge is firm to the touch.
    Tip Pulling the parchment paper up makes lifting the set fudge simple.

The fudge should be spread into a smooth, even layer in the dish. After chilling, it must be completely firm and cool throughout. A quick test involves pressing the center lightly; it should feel solid and not leave an indentation. Once firm, the fudge is ready to be lifted from the pan and sliced into squares. The surface should be smooth and the edges clean, indicating that the fudge has set properly and is ready for serving to guests or for storage in the refrigerator.

Common mistakes

A common mistake is overheating the mixture, which can cause the oils to separate from the peanut butter solids. If the mixture appears oily, remove it from the heat immediately and stir vigorously to re-emulsify.

Another error is rushing the cooling process by placing the dish in the freezer too early, which can cause the fats to set unevenly. Allow the fudge to cool gradually at room temperature before moving it to the refrigerator to ensure a uniform, dense texture that is consistent from the edges to the very center of the pan.

How to tell it’s done

The fudge is done when it is firm to the touch and has lost its glossy, fluid appearance, turning slightly matte as it sets. After the chilling time, it should be solid enough to lift out of the pan using the parchment paper edges without bending or losing its shape.

A clean cut with a sharp knife confirms the texture is perfectly set. If the fudge feels too soft or sticky, it requires additional time in the refrigerator to fully solidify the fats and achieve the ideal, sliceable consistency for serving.

Coming up in Part 3: common questions

  • Can natural peanut butter be used for this recipe?
  • Why does the fudge sometimes turn out grainy?
  • Is it possible to make this fudge without a ceramic dish?

Also in Part 3: variations (Chocolate Swirl Fudge, Salted Peanut Fudge), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)