1-How to Prepare the Perfect Fluffernutter Cookies: Creating Fluffernutter cookies is straightforward and fun, starting with preheating your oven to 350°F and lining baking sheets with parchment paper. In a large bowl, mix the peanut butter, butter, and brown sugar until smooth and creamy, which takes about 2-3 minutes with a hand mixer. Once that’s done, add the egg and vanilla extract, mixing until everything combines well.

2-Next: stir in the flour, cornstarch, and salt on low speed until just incorporated, forming a soft dough. Use a 2-tablespoon scoop to drop dough onto the sheets and flatten each into a 3-inch disk. Add about 1 tablespoon of marshmallow fluff in the center of each disk, then fold the dough around it to cover completely and shape into balls.

3-Baking and Cooling Steps: Bake the cookies for 10-12 minutes until the edges brown, but keep an eye on them to avoid burning the marshmallow. Let the cookies rest on the sheets for 10-15 minutes before moving them to cool fully. This process yields 16 delicious cookies, perfect for sharing or snacking.