Make as many horizontal striped candies as you can in centre board, and line them up to target the icing at different heights. Place as many as you can against the thicker waffles.
Try to make a make striped + wrapped candy combination and detonate it against the areas with thicker waffles. This will detonate many of the other striped candies on the board, delivering multiple hits to the waffles in a single move.
Similarly, if a striped + wrapped candy combination is not forthcoming, a striped + striped combination can also be very effective in this level, especially if multiple striped candies are in each other's direct line of fire, so that many can be set off at once.
Combining a colour bomb and striped candy is also very helpful in destroying the waffles.