Ingredients
cooking spray
½cupunsalted buttersoftened
2¼cupsall-purpose flour
2¼tspbaking powder
1tspkosher salt
1½cupsbrown sugardark or light, packed
3large eggs
1tsppure vanilla extract
1cupmini marshmallows
1cupsemisweet chocolateor chocolate chips, coarsely chopped
1cupmilk chocolate chips
1cuptoffee bits
½cupwhite chocolateor chocolate chips, coarsely chopped
Preparation
Preheat oven to 350 degrees F.
Line a 9 x 13-inch baking pan with foil, leaving an overhang on two opposite sides.
Spray the foil with cooking spray.
Whisk together flour, baking powder, and salt in a medium bowl.
In the bowl of an electric mixer fitted with the paddle attachment, mix butter and brown sugar until fluffy, for 2 minutes.
Add eggs and vanilla, then mix until well combined.
Mix in flour mixture until combined.
Fold in half of each of the marshmallows, chocolate and toffee chips.
Spread the batter evenly in the prepared pan.
Scatter the remaining marshmallows, chocolates and toffee on top.
Bake for 25 minutes or until the top is golden brown and a cake tester inserted into the center comes out clean.
Let cool on a wire rack, then lift the bars out of the pan before transferring to a baking sheet.
Refrigerate until set for at least 30 minutes.
Remove from the parchment, and cut the bars into 20 squares.
Serve, and enjoy!
