Sweet Potato Dirty Fries Recipe

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These sweet potato dirty fries are so dirty you won’t believe it. And by dirty, I mean YUM! Soft sweet potato topped with bacon & onion cooked in that sweet yet savoury tang of Worcestershire sauce. All topped off with some oozing cheese, fresh tomato and green parsley. You’ll never look at a sweet potato the same way again!

What are dirty fries?

Dirty fries are fries, (or chips) that are topped off with a variety of yummy condiments to taste. While, really this isn’t a new concept, as loaded fries have been around a long time, I’ve seen dirty fries really take off in the UK – particularly mid last year (2019). Not living in the UK I’m not entirely sure what sparked that but I’d love to hear if you know – leave me a comment!

You can get pretty creative with dirty fries – choosing whatever toppings you feel like. I’ve gone for the classic bacon & cheese with onion. You could make a spicier version with Jalapenos or an indulgent rich blue cheese version.

Sweet Potato Dirty Fries

How do you make sweet potato dirty fries?

To make these you first need to make your sweet potato fries. This is very easy – simply slice up your sweet potato and then bake in the oven for around 25 minutes after coating in olive oil and a little paprika. I made my fries with a crinkle cutter for added effect (and because I need to get around to using more of the kitchen ‘gadgets’ I’ve needlessly bought). But you can just cut them into straight pieces using a knife.

For these bacon dirty fries, you cook the bacon in a pan while the sweet potato is cooking and then add red onion and soften. Finally, add some Worcestershire sauce and spring onion and spoon over the freshly baked fries. Add the cheese and allow to melt and then top with tomato and parsley. Yum!

Dirty Sweet Potato Fries

Can they be reheated?

Yes, but they will not be as good. Since sweet potato fries are already quite ‘soft’ you will end up with a much softer texture all round – as the bacon will lose some of it’s crispness too. If you are going to try to reheat then don’t reheat the tomato or herbs or they will also go a little ‘funky’.

If possible try and eat as soon as it’s cooked!

Looking for other tasty snacks? Check out these bacon & egg muffin cups or this healthier beetroot hummus.

Products that work great for this recipe

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Sweet Potato Dirty Fries Recipe

Sweet Potato Dirty Fries

  • Author: caroline
  • Total Time: 35 minutes
  • Yield: 1 1x


These sweet potato dirty fries are so dirty you will never look at a sweet potato the same way again! Loaded with crispy bacon and red onion, cooked in tasty Worcestershire sauce and topped with oozing cheese and fresh tomato and parsley – yum!


  • 1 large sweet potato (around 200 g)
  • 2 tsp olive oil
  • 1/2 tsp sweet paprika
  • 1 rather of back bacon, or 3 pieces of streaky bacon (around 40 g)
  • 1/2 red onion, very finely diced
  • 2 tsp worcestershire sauce
  • 1 spring onion, finely slices
  • 10g grated cheddar (around 1 tbsp)
  • 1/2 tomato, finely diced (around 30 g)
  • few sprigs of parsley, finely chopped

Sweet Potato Dirty Fries Ingredients


1. Preheat the oven to 220 C / 440 F. Slice the ends of the potatoes off and then cut them into strips of around 1/4 inch thick. (I used a crinkle cutter, but you can use a plain knife)

Sweet Potato Dirty Fries Step 1

2. Place in a bowl and drizzle over 1 tsp olive oil and the sweet paprika. Season well and then toss the fries in the oil until lightly coated. Line a baking tray with parchment / baking paper and then transfer the fries to the tray – spreading them out evenly. Place in the oven. After 15 minutes toss the to turn and rotate the tray and place back in the oven for an additional 10 minutes.

Sweet Potato Dirty Fries Step 2Sweet Potato Dirty Fries Step 3

3. While the fries are cooking heat 1 tsp olive oil in a frying pan over a medium-high heat. Thinly slice the bacon and add to the hot pan. Fry for a couple of minutes until starting to brown.

Sweet Potato Dirty Fries Step 4

4. Reduce the heat under the frying pan to medium and add the red onion. Cook for a further 5 minutes until softened then add the spring onion and Worcestershire sauce – cook for a further minute. 

Sweet Potato Dirty Fries Step 5Sweet Potato Dirty Fries Step 6

5. Arrange the fries on a wide bowl or plate and sprinkle over the cheese. Spoon over the bacon mix and top with the tomatoes. Finish with the parsley.


  1. After topping the fries with cheese you may want to pop it into the oven for a couple of minutes so it melts fully.
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Category: Snack
  • Method: Bake
  • Cuisine: American


  • Serving Size: 1
  • Calories: 400
  • Fat: 18g
  • Carbohydrates: 47g
  • Protein: 13g

Keywords: fries, snack, cheese, sweet potato, potato, bacon, comfort food

One Thought on “Sweet Potato Dirty Fries”

  • Insanely good comfort dish! Loved how the bacon flavored all of the toppings. Absolute winner.

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