Barbecue grill smoker attachment and method of smoking food products

A smoker attachment for a grill having a grill box with a grill bottom, a grill front wall, a grill rear wall, two grill end walls, a grill heat source and a removable grill lid comprising:

• a smoker box with a solid bottom plate, a left side wall connected to the bottom plate, a right side wall connected to the bottom plate, a rear wall connected to the bottom plate, the left side wall and the right side wall, a top connected to the left side wall, the right side wall and the rear wall;
• a left side door pivotally connected to the left side wall and extending from the solid bottom plate to the top;
• a right side door pivotally connected to the right side wall and extending from the solid bottom plate to the top;
• at least one latch to latch the left side door and the right side door in a closed position in which the smoker box is closed and substantially sealed;
• at least one support bracket attached to the left side wall, at least one support bracket attached to the right side wall, and wherein each of the support brackets rests on an upper surface of one of the grill end walls to support the solid bottom plate above the grill heat source;
• a smoker box divider plate connected to the left side wall, the right side wall and the rear wall and positioned above and parallel to the solid bottom plate to form a wood chip chamber under the smoker box divider plate and a smoking chamber above the smoker box divider plate;
• a wood chip container in the wood chip chamber supported by the solid bottom plate;
• smoke passages through the smoker box divider plate adjacent to the left side wall and the right side wall, a plurality of tray and rack holders attached to the left side wall and the right side wall inside the smoking chamber, a food support rack supported by two of the tray and rack holders, at least one smoke passage aperture through each of the tray and rack holders adjacent to one of the side walls, vertical smoke baffles attached to an upper surface of the tray and rack holders between the smoke passage aperture and a tray and rack support surface on each tray and rack holder.

A method of smoking food products in a smoker attachment having a smoker box for a barbecue grill comprising:

• positioning the smoker attachment on a grill box of the barbecue grill with a solid bottom plate of a smoker box portion of the smoker attachment above a grill heat source;
• activating the grill heat source;
• opening a door assembly of the smoker box;
• placing wood chips inside a wood chip chamber in the smoker box;
• placing a rack, with food products to be smoked, on a pair of tray and rack holders inside a smoking chamber in the smoker box;
• closing the door assembly to substantially seal the wood chip chamber and the smoking chamber;
• deactivating the grill heat source when the food products on the rack are ready to be removed from the smoking chamber;
• opening the door assembly;
• and
• removing the rack with food products from the smoking chamber.