Combine crumbs and 1 egg white in a bowl; toss with a fork until moistened. Firmly press into bottom and up sides of a 9-inch pie plate coated with cooking spray. Bake at 375° for 10 minutes; let cool on a wire rack.
Combine pumpkin and remaining ingredients in a large bowl; stir with a wire whisk until smooth. Pour pumpkin mixture into prepared crust. Bake at 375° for 45 minutes or until a knife inserted in center comes out clean; let cool completely on a wire rack.
Disappointing. I love Amaretto and thought this sounded so good. Does not produce nearly enough filling and the flavor was bland. Will not make again.