Classic Mud Pie - cooking recipe

Ingredients

1 (12 oz.) pkg. semi-sweet chocolate chips, divided
3 Tbsp. butter
1 1/4 c. chocolate wafer crumbs
1/2 c. heavy cream
3 Tbsp. butter
1 Tbsp. coffee flavored liqueur
1 qt. coffee ice cream, softened
2 Tbsp. coffee flavored liqueur
whipped cream (optional)

Preparation

Chocolate Cookie Crust:
Combine over hot (not boiling) water, 1/2 cup semi-sweet chocolate chips and butter; stir until chocolate chips are melted and smooth.
Add wafer crumbs; stir until well blended.
Press into 9-inch pie pan.
Chill until firm (35 to 45 minutes).