Preparing a Blue Blazer requires caution due to the use of fire. First, warm the whiskey and water in separate containers. Ignite the whiskey carefully with a long match or lighter, then gradually start pouring it back and forth between two metal mugs or ladles at a safe distance from you and any flammable materials. Practice with cold water first to get used to the weight and motion. Once the flame has been extinguished, add the sugar, stir until dissolved, and serve immediately in a preheated pint glass.