Melt marshmallows in milk. Chill until cool and slightly thickened. 1/2 c. brown sugar 1/4 tsp. salt 1/2 c. butter
Mix together until crumbly. Put in 9 x 13-inch pan. Bake at 400 degrees, 10 to 12 minutes, stirring occasionally until brown. Take out 1/2 cup mixture. Press down remainder in the pan.
Whip 1 cup cream; add 1/4 teaspoon vanilla extract. Pour cooled marshmallow mixture into cream. Pour 2/3 mixture over crumbs. Spoon 1 can cherry pie mix over this. Top with remaining marshmallow mixture and then top with rest of crumbs. Chill 6 hours or overnight. Makes 12 servings.