Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   6      tablespoons   butter
   1      large         onion -- chopped
   2      teaspoons     basil
   2      teaspoons     oregano
     1/2  teaspoon      thyme
     1/4  cup           lemon juice
     1/2  cup           sherry
     1/4  teaspoon      red pepper flakes
   3      pounds        whole mushrooms -- washed

Preparation:

Turn the slow cooker on high. Melt butter; add onion and saute until onion is limp. Turn cooker on low. Add spices, lemon juice, sherry and pepper flakes and allow mixture to steep on low for 1 to 2 hours. Add mushrooms about 15 minutes before guests arrive.