Gluten Free Peanut Butter Brownie Cake A three layer brownie batter cake filled and frosted with peanut butter chip buttercream. A three layer brownie batter cake filled and frosted with peanut butter chip buttercream. Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Pinterest (Opens in new window) Pinterest Print (Opens in new window) Print More Email a link to a friend (Opens in new window) Email Share on LinkedIn (Opens in new window) LinkedIn Like Loading... Related