Granny Fearing's Kentucky Baked Beans

• 350 degree oven
• 2 casserole
• 1 onion (finely chopped)
• 1/2 smoked bacon thickly
• 350 ml heinz ketchup
• 350 gr pork
• 250 gr brown sugar packed (light)
• 30 ml molasses
• 32 gr heinz sweet gherkin pickle
• 16 ml mustard (yellow)