Flaxseed Meal (Best Option)
1 tablespoon flaxseed meal + 3 tablespoons water per eggFlaxseed meal mixed with water forms a mucilaginous gel that mimics the binding and moisture-retaining properties of eggs. This gel helps hold the oatmeal together and improves texture by adding slight viscosity.
To use successfully, mix the flaxseed meal and water and let it sit for 5-10 minutes until it thickens before adding to the oatmeal. Avoid adding too much as it can make the oatmeal gummy.
Compared to eggs, flaxseed meal creates a slightly denser and nuttier oatmeal but maintains a pleasant mouthfeel and good cohesion.