Robrob's barbeque sauce

• 2 1/2 cup ketchup
• 1 pints mustard
• 2 tbsp salt
• 2 tbsp black pepper
• 1/2 tsp red pepper
• 1 cup water
• 1 stick of butter
• 1 1/2 quart vinegar
• 4 cup sugar

1. mix all ingredients well.
2. cook and stir until boiling.
3. use whisk to prevent lumps.
4. reduce heat and simmer for at least one hour.
5. let cool.
6. pour into jars.

ketchup, pints, salt, black pepper, red pepper, water, butter, vinegar, sugar

Taken from cookpad.com/us/recipes/332736-robrobs-barbeque-sauce (may not work)