Prepare Basic French Toast recipe.
In a saucepan over medium heat, mix together 1 1/2 cups raspberries, sugar, and ½ cup water until sugar is dissolved. Heat the mixture to boiling, stirring often. Reduce heat and add vanilla.
In a small cup, combine the cornstarch and two tablespoons of water. Mix well.
Stir this into raspberry mixture. Simmer over medium-low heat for 4 minutes or until the mixture has thickened slightly.
Remove from heat. Add 1 tablespoon of butter and mix until the butter has completely melted.
Allow the mixture to cool for 15 minutes, then stir in the remaining raspberries (if desired).
Layer ½-1 tablespoon of raspberry sauce between each layer of prepared French toast (we did 4 layers). Repeat with each stack of French toast.
Decorate and serve with side of fresh berries, if desired.
Try these other variations: