Spray cupcake tray with baking spray and preheat the oven to 350 F.
Prepare the Strawberry Cake Mix according to the package instruction by mixing strawberry mix with vegetable oil, water and eggs.
Bake the cupcakes for 25-30 minutes.
Meanwhile, prepare the french vanilla frosting by creaming the butter.
Add in heavy cream, French Vanilla Creamer and each cup of confectioner sugar.
Once the cupcakes are cooler, place a cupcake into the mason jar and top with frosting. Then add another cupcake right on top of the frosting. Finish with another layer of frosting.