Forgo spending unnecessary money on commercial horse treats by making sugar cubes on your own, quickly and simply, at home. You won't need molds or other special equipment. Rewarding your horse with homemade brown sugar cube treats can make it easier to get a halter on or to motivate your horse during training.
Preheat the oven to 250 degrees and line the baking pan with parchment paper. Mix the brown sugar and water together in a mixing bowl until the water is fully absorbed and makes the sugar stick together. Pour the mixture onto the center of the parchment paper. Press on the top and sides of the sugar with a fork, packing it together into a square loaf about a half-inch thick. With a kitchen knife, score the sugar into 12 to 15 cubes. Bake for 1 hour. Let it cool, then break the sugar square into the pre-cut cubes.