Chocolate Squares is one of the possible level objectives. Those can be found behind candies and must be cleared away by matching or using boosters to collect them.
Candied cherries are another of the possible level objectives. They are only affected by boosters and power-ups. When a Candied cherry is hit, a set of four cherries will split into two sets of two cherries. Similarly, when a set of two cherries is hit again, it will split into two single cherries, and hitting the single cherries will collect them. Each time when a set of cherries is hit, it counts toward the level objective.
Chocolate eggs are another possible level objective. To be collected, they must be guided to the very bottom of a level. Clear candies and obstacles out of the way so the Chocolate egg can safely make it to the ground at the bottom!