Baby formula and blended purees is good. Babies from 4months can take it. Like blended banana or blended boiled carrot or apple (ensure you don't add the back of the carrot or apple and make it smooth) or blended ripe avocado pear with formula. You can also try giving your baby blended boiled rice with formula alone. To makr your pap more nutritious add soyabeans powder But do not add roasted peanuts to your home made soyabeans powder because babies below 6 months can get alergic to it.