INGREDIENTS
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7 Tbsp. butter, divided
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50 Nilla Vanilla Wafers, finely crushed (about 1-1/3 cups)
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4 cups fresh blueberries, divided
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1/2 cup plus 1 Tbsp. sugar, divided
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3/4 cup cold water, divided
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2 Tbsp. cornstarch
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Zest and juice from 1 lemon, divided 3/4 cup
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boiling water 1 pkg.
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(85 g) Jell-O Lemon Jelly Powder Ice cubes
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2 cups thawed Cool Whip Whipped Topping, divided