Yes, it is possible to make malt syrup at home using malted grains such as barley, wheat, or rye. The process involves sprouting the grains to activate their enzymes, kilning or roasting them to develop their flavor and color, milling them into a fine powder, and mixing the powder with water to extract the malt sugars. The resulting sweet liquid is then boiled down to concentrate the syrup and sterilize it. Making malt syrup at home requires some specialized equipment and knowledge, but it can be a rewarding and satisfying experience for homebrewers, bakers, and chefs who appreciate the unique flavor and sweetness of malt.