A method is provided for producing at least one popcorn grain substantially entire and coated, completely or partially, with at least a first layer of a first melted cheese directly in contact with the popcorn grain. The first melted cheese has an initial moisture content of less than 35%, or alternatively, the first melted cheese is cooked too and its moisture after cooking is lower than 8%. A second layer of a second cheese may be applied to the food product.