Heat waffle iron. Prepare waffle mix for 2 large waffles, 4 quarters each. Add sugar to a large food storage bag and crush cubes with a small heavy-bottomed skillet or meat mallet. Add crushed cubes to prepared batter. Brush iron with melted butter. Add waffle mix and cook to waffle iron directions. Serve 1/2 a large waffle or 2 sections from your iron per person, topping with sliced berries and a rosette of whipped cream.