Marianne Stewart is a New Product Development pastry chef with over 17 years of experience working across high-end production kitchens and wholesale bakeries. A commercially focused problem solver, she specialises in developing and scaling sweet baked goods that balance creativity with real-world production and profitability.

Over the past five years, Marianne has supported large-scale and wholesale bakery clients from concept through to launch, delivering café, foodservice and retail-ready products across ambient, chilled and frozen formats. Her work spans cookies, cakes, traybakes, tarts and celebration cakes, with a strong track record in reformulating core ranges, improving underperforming products and optimising recipes for cost, quality and scale.

Working collaboratively with operations, technical and marketing teams, Marianne embeds seamlessly within businesses as a trusted extension of the team.

Alongside her NPD work, she is the author of Nourish Cakes (Quadrille, 2018) and brings a strong visual sensibility through a background in cake decorating and food styling - helping brands create products that look exceptional, scale smoothly and perform commercially.