Makhana (fox nuts) is a popular, nutrient-dense food that you can introduce as early as 6 months. To prepare, dry roast the makhana until it becomes crunchy, then grind it into a fine powder. You can mix this powder into breast milk, formula, or yogurt. To add flavor and nutrition, many parents successfully incorporate healthy fats by mixing in small amounts of ghee, or natural flavor enhancers like ground almond or cashew powder, depending on what your baby has already tolerated.