Peanut butter cookie dough grahamwiches combine crunchy graham crackers with an edible peanut butter cookie dough that gets dunked in chocolate for good measure!
You should have truly emphasized the heat-treated flour part because I can see some kid attempting to make these with regular flour, not knowing that it's inedible unless it's heat-treated flour, almond flour or an edible flour substitute.
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Another center that would be really good is that Rice krispie peanut butter mixture.