Method
Step 1
Preparation: Preheat the oven to 200°C. Prepare all ingredients as indicated above.
Step 2
Potato chips: Cut off the ends, then cut into 1cm slices lengthways and cut those slices into 1cm chips. Place the chips on a tin foil lined baking tray. Drizzle with olive oil, season with salt and pepper, mix and then spread in a single layer. Roast for 25 minutes, until golden and cooked.
Step 3
Beef cubes: Place a pan on medium-high heat with a drizzle of olive oil. Toss the beef cubes in a little olive oil and season with salt and pepper. When the pan is hot, add the beef cubes and fry for 5-7 minutes, turning occasionally until brown all over. Remove and set aside.
Step 4
Sauce: Using the same pan, on medium heat with a drizzle of olive oil, add the red onion with a pinch of salt and sauté for 5 minutes. Add garlic, cook for 30 seconds, then throw in most of the paprika (reserving a little pinch), mix and add the white wine vinegar, Worcestershire sauce and lemon juice to taste. Then add water (½ cup for 4; ¼ cup for 2) and cook for 3 minutes. Slice the basil thinly and add to the sauce. Add the beef cubes back into the pan, with any juices, to reheat and coat with the sauce.
Step 5
Swiss Chard: Dress with olive oil, the reserved pinch of paprika and a little lemon juice, salt and pepper.
Step 6
Serve the saucy beef cubes with potato chips and Swiss chard on the side.