In an exciting development for food lovers across the UK, researchers at Heriot-Watt University in Edinburgh are on a quest to create a healthier version of the nation’s cherished sausage roll. With an astonishing 10 to 15 million of these flaky delights sold weekly, the team is determined to maintain the beloved taste and texture while significantly reducing the saturated fat content that can comprise over 60% of an adult’s daily allowance in just one roll.
A Healthier Future for a Classic Snack
The humble sausage roll, a staple in bakeries and households alike, is known for its sumptuous layers of pastry encasing a meaty filling. However, the traditional recipe’s reliance on solid fats for that signature flakiness comes with a hefty health cost. Professor Stephen Euston, leading the research at Heriot-Watt’s School of Engineering and Physical Sciences, emphasises the importance of flavour and texture in their innovative approach. “Our goal is to lower the level of saturated fat while keeping the taste and texture that people love,” he stated.
The research team is not limiting their efforts to sausage rolls alone; their findings could extend to other popular baked goods, including croissants and Danishes, potentially transforming the pastry landscape altogether.
The Science Behind the Snack
The key to this transformation lies in a process known as oleogelation, which allows the researchers to replace traditional solid fats with healthier liquid oils like sunflower or rapeseed oil. These oils boast lower saturated fat levels, but their liquid state poses a challenge. “Simply swapping out solid fats for liquid oils won’t yield the desired texture,” Professor Euston explained. “The fat is essential not just for flavour but for creating the structural integrity necessary for that iconic flaky texture.”
Through innovative techniques, the researchers hope to create a “solid-like fat” that emulates the properties of conventional fats, allowing the pastry to rise and separate into those delightful layers we all adore.
Sustainable Solutions
In addition to health benefits, this groundbreaking research takes environmental considerations into account. The team is specifically focusing on oils derived from crops that can be cultivated within the UK, minimising the ecological footprint of their modified pastry.
The potential advantages of this research extend beyond health. Professor Euston noted that the new oleogels could streamline the baking process, reducing the need for frequent chilling during production. “If our oleogels prove stable at higher temperatures, manufacturers might find they don’t need to chill the pastry at all, simplifying the whole process,” he remarked.
Collaborating for Change
This ambitious 10-month project sees collaboration between Heriot-Watt University and industry partners New Food Innovation and AB Mauri. Funded by the UK Research and Innovation Engineering and Physical Sciences Research Council (UKRI EPSRC), the initiative aims to transition from laboratory experiments to real-world testing in kitchens, where the flavour of the modified pastry can be assessed by everyday consumers.
Dr Andrew Bourne, the executive director for innovation and partnerships at UKRI EPSRC, highlighted the significance of this project: “By taking innovative food science out of the lab and into the kitchen, we hope to make the nation’s favourite snacks healthier, genuinely impacting our health and wellbeing.”
Why it Matters
This pioneering research could herald a new era for one of Britain’s most loved snacks, aligning the enjoyment of traditional pastries with modern health standards. As the sausage roll undergoes this transformation, it not only promises to reduce saturated fat but also sets a precedent for how we approach our food in an era where health consciousness is increasingly paramount. If successful, this initiative could inspire further innovations in the food industry, encouraging a shift toward healthier eating without sacrificing the flavours we cherish.
