This Biscoff fudge is the simplest cookie butter fudge, with just 2 ingredients and a few minutes of prep. It's a decadent treat that's perfect for gifting and freezer-friendly!
Line an 8-inch (20 cm) square baking pan with parchment paper, leaving some overhang on the sides.
Scoop ¼ cup of the Biscoff cookie butter into a small microwave-safe bowl.
Microwave for 30 seconds, stir, and set it aside.
Add the vegan chocolate chips and the rest of the Biscoff cookie butter to a heat-safe bowl.
Fill a pot with 1 to 2 inches (2.5 to 5 cm) of water and bring it to a simmer over medium heat.
Set the bowl over the pot, making sure the water doesn't touch the bottom of the bowl.
Stir regularly until the chocolate and Biscoff are completely melted and smooth.
Pour the fudge mixture into the prepared pan.
Spread it into an even layer with a spoon or spatula.
Drizzle the melted Biscoff from step 3 over the top.
Swirl it into the fudge with a skewer or knife.
Refrigerate for at least 5 hours, until firm.
Lift the fudge out of the pan using the parchment paper and cut it into 18 squares.
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Notes
If the fudge is too firm straight from the fridge, let it sit at room temperature for a few minutes. Dipping the knife in hot water and wiping it dry makes clean cuts.
Parchment keeps the fudge from sticking. You can lightly spray it with cooking spray, though I usually skip it.
Keep water out of the chocolate bowl, since even a drop can make the chocolate seize.
Smooth or crunchy cookie butter both work. Crunchy adds extra texture.
Semi-sweet, dark, or vegan white chocolate chips all work.
For extra flavor, add a pinch of salt, or press 2 to 3 crushed Biscoff cookies into the top before chilling.
Store in an airtight container in the fridge for up to 2 weeks, or freeze for 3 to 4 months.