Preparing baby food involves selecting fresh ingredients, such as fruits and vegetables, and cooking them until soft. Common choices include carrots, sweet potatoes, and bananas. After cooking, the food is typically pureed or mashed to achieve a smooth texture suitable for infants. Once the food is prepared, it can be stored in small containers or ice cube trays for easy portioning. It's important to label and date the containers to ensure freshness. Parents should introduce new foods gradually, watching for any signs of allergies or sensitivities in their baby.