[header] How to make homemade liquid dish soap [title] Mix the water and soap flakes. [step] Add 2 cups (470 ml) of water and ¼ cup (9 g) of soap flakes to a medium sauce pan. Use a spoon to stir the ingredients together so the soap is mixed throughout the water. 
[substeps] Soap flakes are usually sold in the laundry aisle at grocery stores. You can substitute soap shavings for store-bought flakes if you prefer.