Gear:
clean, normally breastfed baby
camera
high chair
rice cereal
bowl & spoon
ripe organic avocado
collection device

Process:
Open, examine, and extract the avocado. Mash in a cup with rice cereal. Overcoming initial objections, insert spoon filled with avocado-cereal mash in baby's mouth. Wait. Allow baby to catch on and enjoy the taste of the avocado mash. While the short term outcome is a verdantified baby mouth, the real target (verdantified alimentary canal) and product (output) requires additional waiting. Breastfeeding infants produce stools that are yellow in color. They also don't smell. This is perfectly normal. When switching to solid foods, changes are introduced. The result is a verdantified stool, collected in the waiting diaper.

Results:
Verdantify... top...to bottom!