For the first part, you need to click on the Mortar and Pestle. It will take 1 hour to retreive them. You will be given a Mortar and Pestle in your Inventory.
For the second part, you will need to click on the Foundation. It will take 1 hour to hammer the Mortar and Pestle into the foundation. The Mortar and Pestle will be removed from your inventory.