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1
Preheat the oven to 350u00b0F.
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2
Grease an 8 inch square pan or a 7 by 11 inch pan and line it with parchment paper.
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3
Leave an overhang with which to lift the brownies.
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4
Line a baking sheet with parchment paper and set aside.
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5
For the bottom layer, combine all the ingredients in a small bowl and stir to blend.
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6
Press the mixture into the prepared pan.
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7
Chill for 10 minutes.
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8
For the brownie layer, melt the butter in a small saucepan.
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9
Remove from heat and stir in the chocolate to melt.
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10
Stir in the sugar.
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11
Let cool just to warm, then whisk in the eggs, vanilla, flour, and salt.
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12
Spread over the bottom layer in the pan.
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13
For the graham cracker layer, toss the chopped graham crackers with the melted butter in a small bowl and distribute over the batter.
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14
Place the pan on the prepared baking sheet and bake for 22 to 24 minutes, or until set.
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15
Remove from the oven and preheat the broiler.
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16
For the topping, sprinkle the top of the brownies with the marshmallows.
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17
Place under the broiler until the marshmallows start to melt and brown.
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18
(20 to 60 seconds).
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19
Remove from the oven and sprinkle with the chopped chocolate.
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20
If desired, smear the chocolate with a knife as it melts.
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21
Let cool to room temp and then refrigerate for 20 to 30 minutes before cutting.
