Step 1

Set the oven’s temperature to 375°F (190°C). A baking sheet may be gently greased with cooking spray or lined with parchment paper.

Step 2

Carefully cut the mushroom stems off and save them. To remove any dirt or debris, clean the mushroom tops with a moist paper towel. Place the cleaned mushroom caps stem-side up on the prepared baking sheet.

Step 3

Chop the saved mushroom stems into a fine powder.

Step 4

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