Preheat your oven to 300 degrees. Now grease the baking sheet with some butter. You can also use olive oil instead of butter. However, avoid ingredients like wheat, rice and honey for children under one year age.
Take a mixing bowl. Add to it the eggs, baking powder, salt, vanilla and water. Mix everything well together. Now add in the baby cereal gradually in the mixing bowl. Knead with clean hands so that there is a smooth and firm dough for the biscuits.
Pat the dough into a rectangle. Now you can cut of any shape that you want the cookies to be. You can cut simple rectangle biscuits or use cookie cutters to make round or heart shaped to make it more interesting for your child. However, avoid shapes with sharp edges as they can harm the child's mouth and gums. Place the cookies on the baking sheet and bake for around twenty minutes.
Take them out and cool them well before you serve them to the baby. He will give you his teethy smile and love munching on the biscuits.