Sprinkle peaches with 1/2 cup sugar and 1 Tablespoon E-Z Gel mixture and let stand for 15 minutes. Combine cracker crumbs, sugar, E-Z Gel, stir in melted butter. Press all but 1/2 cup of crumb mixture on the bottom of a 9-inch square pan. Drain peaches, reserving 1/2 cup of the syrup. Combine reserved syrup and marshmallows in a microwave-safe bowl. Microwave a minute at a time until a smooth mixture is achieved. Let cool. Fold whipped cream into marshmallow mixture. Layer peaches onto crust. Spoon marshmallow mixture over peaches and sprinkle with remaining crumbs. Chill 30-90 minutes before serving.