It is an orders level, you have to collect bombs, yellow and red candies to complete the level and they are all provided by the lucky candies that drop through the portals all around the board and then through into the bottom three spaces under the portal in the main board.
Once it gets to the end of the conveyor it won't drop out onto the board, it has to drop into the spaces where the other 5 ingredients were.
To pass this level, you must clear 45 single squares in 20 or fewer.