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1
Preheat the oven to 350F.
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2
Grease a 10x15-inch glass pan.
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3
Mix 3/4 cups margarine, applesauce, 1 tbs vanilla, 1/2 cup cocoa powder, and sugar.
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4
Stir in the flour, baking powder, baking soda, and 1 cup of soymilk.
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5
Add the walnuts and stir until everything is well combined.
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6
Pour the batter into the greased pan, and make sure that the batter is sitting evenly throughout the pan.
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7
Bake until a wooden toothpick inserted in the center of the cake comes out clean.
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8
This will take between 25 and 35 minutes.
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9
It is recommended that you check on the cake after 20 minutes of baking, and continue to check on it every five minutes thereafter.
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10
Let the brownies cool completely.
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11
This may take up to three hours.
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12
Remove the brownies from the pan.
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13
Soften the remaining 1/2 cup margarine until it is at room temperature.
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14
In a separate bowl, beat the margarine with a fork until it has a creamy consistency.
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15
Add the 1/2 cup cocoa powder and vanilla to the margarine and continue to beat until smooth.
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16
Alternate between adding in the powdered sugar and soymilk, and mix until everything is smooth and well blended.
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17
Use this mixture to frost the brownies.
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18
Slice the brownies and enjoy!