These dramatic black cookies with creamy peanut butter filling are a show-stopping dessert that looks impressive but is deceptively simple to make. Perfect for Halloween or any gathering, they feature an intense Oreo-like richness from black cocoa powder.
Don’t skip chilling the dough—it prevents spreading. Use room temperature ingredients for best results. For the darkest color, use black cocoa powder (Rodelle or King Arthur Flour). For the filling, avoid natural peanut butter that separates; use creamy processed peanut butter. Cookies can be baked up to 3 days ahead; assemble just before serving. Freeze unfilled cookies for up to 3 months.
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