Given the task definition and input, reply with output. In this task, you will be presented with the directions of a recipe separated by "," and have to fill in the "___" which is a step that is missing from the recipe.

Combine molasses, corn syrup, sugar, water and vinegar.,Cook to hard boil and reduce heat.,Then add butter.,Continue to cook until hard ball stage.,______,Wipe crystals off pan. Add baking soda.,Stir to mix thoroughly.
Remove from heat.