Pumpkin Parfait
["1 1/2 c. graham cracker crumbs", "1/2 c. chopped pecans", "1/4 c. margarine, melted", "1/4 c. sugar", "1 qt. vanilla ice cream", "1 1/2 c. pumpkin", "1/2 c. brown sugar", "1/2 tsp. salt", "1/2 tsp. cinnamon *", "1/4 tsp. ginger *", "1/8 tsp. cloves *", "nuts and whipped cream"]
["*One and one-half teaspoons pumpkin pie spice can be used instead of these ingredients."]
["graham cracker crumbs", "pecans", "margarine", "sugar", "vanilla ice cream", "pumpkin", "brown sugar", "salt", "cinnamon", "ginger", "nuts"]