Bake the Marie Callender's Apple Pie according to package directions. Allow to cool.

Place the red hot candies and 1/2 cup of water in a small sauce pan. Heat over medium-low heat, stirring occasionally, until candies are completely melted. Stir together the cornstarch and remaining 1 tablespoon of water until smooth. Add to the red hot candy sauce. Bring mixture to a vigorous simmer and allow to cook for about one minute. Remove from heat.

Drizzle the pie with the red hot candy sauce.

Slice pie and top each slice with Reddi-Wip topping and a red hot candy.