My father used to make pizzelles for us every year. He would substitue, any flavor he wanted. And believe me he loved to experiment. For the butter pecan flavor he would add the lorraine flavoring,butter pecan, and he would chop,really fine pecans and add to batter. Not a lot but 1/4c. or so. He made Pineapple,Banana,Orange,with orange flavor and zest,key lime with zest and flavoring. Please make all kinds. They all turn out great. Don't get discourage when making them, it takes time to figure exact time to cook,