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The McDonald's version will only set you back between £3.19 and £3.39 (depending on where you live in the UK and which restaurant you visit).
That means, if you buy your ingredients at ASDA, like Miguel, you'll save a minimum of £2.27 per burger - and it takes less time than a trip through the drive through to make too.
Make sure you shop around supermarkets to find the best deals for the ingredients.
Miguel, who lives in North London, has written three recipe books in his One Pound Meals series.
He has a fourth book of vegan recipes dropping in April.
"The Big Mac is one of my favourite burgers of all time," he told The Sun. "I thought I'd give it a go as a bit of fun for my followers. It tastes amazing.
"The revelation for me was using 100 per cent beef and not messing with it as you get a much better result.
"People often over complicate things, especially chefs. They feel like they need to add loads of ingredients, but I believe in simplicity," he explained.
Often overlooked when the Big Mac is imitated, Miguel even replicated the trademark, middle bun slice, and created a copycat version of the infamous Big Mac sauce.
Determined to keep the cost of his copycat version as low as possible, Miguel explained that he bought the cheapest packet of mince he could find in ASDA. He also swerved more expensive branded ingredients, opting instead for the supermarket's own brand.
"To get it under £1, I had to sacrifice a bit on the quality of the ingredients compared to McDonald's and use a lower grade of beef as they use forequarter and flank. But it is prepared in in a very similar way," the food blogger explained.
"The Big Mac sauce is my own homemade shortcut, using just three ingredients: mayo, mustard and tarragon.
"The original sauce recipe can actually be found on the McDonald's website and it contains garlic, onion, paprika, sweet pickle relish - but I would have spent longer making the sauce than the actual burger," he added.
"There was a bit of wastage with the top part of the burger bun [when I sliced them into three] but I used the [scraps] to make sightlier scruffier versions of my burger.
"It tasted the same, it just wasn't as neat," he confessed.
Miguel hadn't assessed the nutritional values of his version, but believes it probably contains about the same or slightly fewer than the 508 calories in a McDonald's Big Mac.
His burger has gone down well with his 302,000 Instagram followers, who have watched a recipe video of him making the meal more than 84,000 times so far since it was posted earlier this month.
One said "Just made this and it was spot on. Thanks @onepoundmeals"
While another commented: "Made this and it was such a hit..... The hubby now wants a "big Mac" every day... You created a monster!!"
The food blogger created the recipe after McDonald's challenged him to make his own version for £1 or less.
"We love that Miguel has had a go at recreating the Big Mac," a spokesman for the fast-food chain said. "We are definitely claiming some credit for how tasty his looks."
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