For anchovy powder. heat a skillet over medium heat, toast the anchovies until they are very dry and toasty, about 2 minutes. Transfer them to a plate lined with paper towel and let them cool completely. Place them in a blender and process until powdered. Store them in an airtight container.
For shrimp powder, toast the shrimps in a skillet over medium heat until dry. transfer them to a plate lined with paper towel and let them cool completely. Place them in a blender and process until powdered. Store them in an airtight container.
For mushroom powder, place them in a blender and process until powdered. Store them in an airtight container.