"Fluffernutter Cookies: How fun! Soft peanut butter cookies sandwiched around a gooey marshmallow filling. Naturally gluten-free & dairy-free...."
INGREDIENTS
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2 cups peanut butter
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1 1/2 cups granulated sugar
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2 eggs ((large))
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2 teaspoons baking soda
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1 teaspoon kosher salt
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5 egg whites ((from large eggs))
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1/2 teaspoon cream of tartar*
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1/8 teaspoon kosher salt
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2 cups granulated sugar, (divided)
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2 teaspoons vanilla extract
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2/3 cup water