Wash all the utensils before making your recipe. Make a habit that you always wash all the tools and utensils before doing anything related to cooking.
Set aside every ingredient and try to start the recipe in calm manner. Now take a large bowl and put all kinds of peppers which are necessary for making bread and butter peppers.
Along with all the peppers, put onion and salt in the bowl and stir together. Stir with firmness and let stand for almost two hours. This will enrich the taste into the onions and all the peppers will mix together nicely.
Take a large saucepan and put all the other ingredients including sugar, vinegar, mustard seed and celery seed. Now put the saucepan on a stove and filled it with water. Bring to a boil and keep stirring the mixture well.
Pour some pepper mixture and cover tightly and put it into the refrigerator. Take out after sometime and serve it with coffee or tea.