Recipe Index

Serving count not stated for this recipe, so quantities are shown as written.

Ingredients

• 2 1/2 cups all-purpose flour
• 1/2 tsp baking soda
• 1 tsp salt
• 1/2 cup unsalted butter, room temp
• 1/2 cup smooth peanut butter
• 1/2 cup granulated sugar
• 1 cup light brown sugar, packed
• 2 large eggs, room temp
• 2 tsp vanilla extract
• Peanut Butter Filling:
• 1/2 cup smooth peanut butter
• 3 tbsp unsalted butter, room temp
• 1 cup powdered sugar, sifted
• 2 tbsp heavy whipping cream
• 1/2 tsp vanilla extract
• Topping:
• 1 (7 oz) jar of Marshmallow Fluff

Method

1. Heat the oven to 350°F, spray an 8x8 metal pan with cooking spray and line it with parchment paper.
2. Whisk the flour, baking soda and salt together in a medium bowl and set the dry mixture aside.
3. Beat the 1/2 cup of butter with the 1/2 cup of peanut butter in a large bowl until smooth, add the granulated sugar and the packed brown sugar and beat on medium-high for 2 to 3 minutes, until pale and fluffy.
4. Reduce the speed, add the eggs and the 2 teaspoons of vanilla extract and beat until combined.
5. Add the flour mixture and mix until the dough has only just come together.
6. Press the dough into the prepared pan, flattening it slightly, and bake for about 30 minutes, until lightly browned and mostly set.
7. As soon as the pan leaves the oven, press firmly down in the centre of the bars with a cup or container to carve out a well, then cool the base in the pan for 10 minutes and on a wire rack until completely cold.
8. For the filling, beat the 3 tablespoons of butter until creamy, add the 1/2 cup of peanut butter and beat for 2 to 3 minutes until well combined, then beat in the sifted powdered sugar half a cup at a time followed by the 1/2 teaspoon of vanilla.
9. Add the heavy whipping cream a tablespoon at a time until the filling reaches the consistency you want, then beat it on high for 3 minutes until fluffy.
10. Spread the peanut butter filling into the well of the cooled bars and spread the marshmallow fluff over the top, then serve the bars at room temperature.

Nutrition not computed — no serving count in the source recipe (per-serving values cannot be derived without one).