If you have excess breast milk can use it in your brownies?

While breast milk may seem an organic and nutrient-rich ingredient, using it in brownies or other baked goods is generally not recommended. Human milk is meant for infants and its composition is specially tailored to their nutritional needs, which differ significantly from those of adults.

Furthermore, using breast milk in food preparation poses sanitary and safety concerns that could lead to the spread of bacteria and other contaminants. Breast milk is also not heat-stable, meaning that it can lose its nutritional value and potentially become harmful when heated during the baking process.

The same nutritional benefits gained from consuming breast milk can be obtained through other common foods, such as yogurt, cheese, and milk, which are specifically produced and regulated for human consumption.

For these reasons, it's generally not advisable to use breast milk in brownies or any other recipes intended for human consumption beyond infants.