NonnaBook is a Brazilian digital recipe notebook designed to help families preserve recipes and the stories behind them. Users can record recipes in their own words, including personal measurements, cooking tips, and notes about who made a dish or when it is served. Recipes can be searched by ingredient, adjusted for different serving sizes, and marked with cooking dates, ratings, and notes. The platform also combines ingredients from selected recipes into a shopping list and suggests dishes based on what users have in their kitchens.

AI features help turn photos of handwritten or printed recipes into editable drafts, generate images of finished dishes, and plan weekly menus using a user’s collection and included recipes. New notebooks start with ten everyday Brazilian recipes, which users can save and customize. NonnaBook’s broader vision includes social recipe sharing, a curated shop for kitchen goods, printed notebooks and courses, and mobile apps for iOS and Android; these are described as in development.