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PREPARATION
5m
Step 1
Preheat oven to 350°. Lightly coat a 13x9-inch baking pan with cooking spray
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Step 1
5m
Preheat oven to 350°. Lightly coat a 13x9-inch baking pan with cooking spray
1m
Step 2
Separate 2 of the eggs, placing 2 egg whites in a medium bowl.
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Step 2
1m
Separate 2 of the eggs, placing 2 egg whites in a medium bowl.
6m
Step 3
In a large bowl, beat butter with an electric mixer on medium for 30 seconds. Add granulated sugar, baking powder, and salt. Beat until fluffy. Beat in 2 whole eggs, the 2 egg yolks, and 1 tsp. of the vanilla until smooth. Beat in flour on low until just combined.
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Step 3
6m
In a large bowl, beat butter with an electric mixer on medium for 30 seconds. Add granulated sugar, baking powder, and salt. Beat until fluffy. Beat in 2 whole eggs, the 2 egg yolks, and 1 tsp. of the vanilla until smooth. Beat in flour on low until just combined.
3m
Step 4
Transfer mixture to prepared pan and spread to an even layer. Top with chocolate chips, mini marshmallows, and pecans (if using).
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Step 4
3m
Transfer mixture to prepared pan and spread to an even layer. Top with chocolate chips, mini marshmallows, and pecans (if using).
5m
Step 5
Topping: Beat the remaining 2 egg whites on high until stiff peaks form, about 2 minutes. Fold in brown sugar and remaining 1/2 tsp. vanilla until combined and there are no lumps. Spread on top of chocolate chip layer.
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Step 5
5m
Topping: Beat the remaining 2 egg whites on high until stiff peaks form, about 2 minutes. Fold in brown sugar and remaining 1/2 tsp. vanilla until combined and there are no lumps. Spread on top of chocolate chip layer.
20m
Step 6
Bake 20 minutes or until top is golden brown.
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Step 6
20m
Bake 20 minutes or until top is golden brown.
Step 7
Let cool completely before cutting into squares.
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