Sauce: In a small pot combine 1 tbsp ketchup, mayo and mustard. Place to one side.
Sausages: In a large pan over low-medium heat melt in 2 tsp butter. Add in sausages and fry for 15-20mins, turning frequently. Frying on a slightly lower heat will render down the fat and make the skin nice and crispy, whilst making sure the meat cooks evenly through the centre. Remove sausages and leave fat (can pop sausages in the oven at a low temp to keep warm if you wish).
Bacon: Place bacon into the leftover fat and fry at the same temp for 10mins, or until the fat renders down and the bacon is nice & crispy. Remove and leave fat behind.
Bread: Increase heat to medium-high and place bread in the leftover fat. Fry both sides until crispy, golden and lightly charred. If you run out of fat just spread the bread with butter then fry.
Sandwich: Slice down the centre of sausages and fold them open. Spread 1 side of each of your slices of toast with sauce. Add sausages meat-side-down, top with bacon then place the second slice of toast sauce-side-down on to the bacon. Enjoy!
Quick Demo
Notes
a) Sausages - I recommend going for a neutral flavoured sausage (i.e no added herbs or anything fancy). I also recommend investing in some good quality sausages - they are the star of the show after all!b) Bacon - Here I use smoked back bacon, but you can use any cut you like. Again, just grab a good quality brand. I always recommend bringing it close to room temp before you fry it otherwise it'll leak out a ton of moisture as it fries, which in turn will prevent it from going crispy.c) Mustard - Make sure it's the classic Yellow mustard, not Dijon or English mustard. Yellow mustard is what you'd typically have with hot dogs, so it's perfect in this context. Not too overpowering like other varieties of mustard.d) Calories - per sandwich.
* Percent Daily Values are based on a 2000 calorie diet.
*Nutrition is based on the absence of salt unless stated as a measurement in the ingredients. Cost is worked out based on ingredients bought from UK supermarkets, then divided by the number of servings. In both instances these values are just for guidance. Please check out my FAQ Page for more info.