Chocolate milk soda or shake

1. Recipe by: preparation time: 0:05 * use unsweetened chocolate or 1 cup cocoa powder, unsweetened.
2. In a saucepan, combine 2 cups boiling water, 2 cups sugar, salt and chocolate or cocoa.
3. Cook and stir over medium heat until smooth.
4. Cool then add 1 teaspoon vanilla extract.
5. Pour into covered jar and store in refrigerator.
6. Yield: 3 cups syrup.
7. To make milkshake, place 2 tablespoons crushed ice, 2/3 cup milk and 2-½ tablespoons chocolate syrup in a shaker and shake until well mixed, or beat with rotary beaters until smooth.
8. Add 1 to 2 scoops of ice cream if you prefer.