Preheat oven to 350 degrees F.

Combine pre-sifted flour, baking powder, salt and baking soda into a mixing bowl; set aside.

Cream butter and both sugars with an electric mixer; Add eggs and vanilla and beat until mixed.

Stir flour mixture into butter mixture, then stir in oats, cornflakes, coconut, chocolate chips and nuts.

Scoop up big tablespoons of dough and shape into balls. Place on parchment lined cookies sheets, spacing 3 inches apart, and flatten lightly with palm of hand so they’ll cook evenly.

Bake cookies for 12-15 minutes or until edges are browned and centers appear set.