1. Start by cutting the ripe avocado in half. Remove the pit and scoop the flesh out using a spoon.
2. Place the avocado flesh into a mixing bowl.
3. Add the plain full-fat yoghurt to the bowl with the avocado.
4. Using a fork or a blender, mash the avocado and yoghurt together until you achieve a smooth and creamy consistency. If using a blender, pulse until it's completely pureed.
5. If the mixture is too thick, you can add a little water or additional yoghurt to reach your desired consistency.
6. Transfer the puree into a small serving bowl or an airtight container for storage.

Summary:
This creamy avocado and yoghurt puree is a nutritious dinner option for babies aged 4-10 months. Avocado provides healthy fats essential for growth and brain development, while yoghurt offers calcium and probiotics for digestive health. Both ingredients are naturally creamy and easy for babies to eat.
Storing Options:
Store any leftovers in the refrigerator for up to 24 hours.
Possible Side Effects/Allergies:
Always be cautious of potential allergies, especially with yoghurt, and consult a pediatrician if you're introducing new foods to your baby's diet.