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1
In a large bowl, stir together oatmeal, flour, brown sugar, Cinnamon (if using), and baking soda.
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2
Add melted butter, stir until all combined.
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3
Set aside 2 cups packed oatmeal mixture for the topping.
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4
Sprinkle the rest of the oatmeal mixture into a parchment-lined 9x13 baking pan.
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5
Pat down with a spatula.
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6
Bake for 12 minutes in a 350 degree oven.
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7
While the bottom oatmeal crust is baking, start the filling.
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8
In a heavy saucepan combine caramels,4 tablespoons of butter, vanilla extract, and milk.
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9
Cook and stir over medium heat until all the caramels have just melted.
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10
When the bottom crust is done, spread caramel sauce evenly on baked oatmeal crust.
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11
Sprinkle walnuts, mini-chocolate chips, and the 2 cups of the remaining uncooked oatmeal mixture, in that order.
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12
With a flat spatula, carefully pat down the uncooked oatmeal mixture you just sprinkled on-top until you can't or can barely see the chocolate chips and nuts beneath.
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13
Now, bake in a 350 degree oven for 25 minutes or until top is golden.
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14
Cool in the pan on a wire rack.
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15
After cooled completely, carefully grab the parchemnt you lined the pan with, and lift the cookies out the pan.
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16
Cut it into bars.
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17
Enjoy!