Grease a 19cm x 29cm slice pan. Combine first 6 ingredients in large bowl. Combine sugar, honey, peanut butter and butter in saucepan, stirring constantly over low heat until butter is melted and sugar is dissolved. Bring to the boil, reduce heat and simmer for 5 minutes. Stir constantly. Cool slightly and stir into dry mix. Press into slice pan and refrigerate until set.