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1
*If you can't find oat flour, use normal or gluten-free oats, put them in a food processor and break them down until they become a fine powder*
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2
Place all ingredients into a food processor.
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3
Process until all ingredients are well combined and form a big doughy ball. Its good to process just to nice and combined, you still want a bit of texture in the mixture.
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4
Press down with your fingers, spoon or spatula to create a smooth surface.
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5
Place brownie filling into the fridge to set while you're making the frosting.
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6
Place all ingredients, accept walnuts, in a bowl and mix together.
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7
Fill a plastic zip-lock bag with 1/4 walnuts. Using a rolling pin or any round item break down the walnuts into smaller pieces. You could also do this in a food processor or with a mortar and pestle.
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8
Take first brownie layer out of the fridge, and if went touched, is nice and firm, pour over half the frosting.
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9
Spread the frosting so it covers the entire brownie layer. Add the crushed walnut pieces onto of the frosting layer and place back in the fridge to harden.
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10
Repeat the brownie filling then brownie frosting steps so you create a filling, frosting, filling, frosting layered effect
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11
Before you put the last layer of frosting into the fridge to set crumble over some walnuts as a topping
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12
Slice and enjoy!! - would be super yummy with ice-cream or even a layer of smooth peanut-butter spread right on top
