Toss the mushrooms in the marinade until fully coated
Pan-fry in a little oil over medium-high heat until the edges get crispy and the marinade turns sticky and caramelised
Mix mayo, peanut butter, fresh orange juice, and miso paste until smooth and creamy
Add a tiny splash of water if you want the mayo looser
Assemble sandwiches with the pan-fried mushrooms and peanut orange miso mayo
