Beat cake mix with 1 cup water, 1/2 cup vegetable oil, a package of vanilla pudding mix, and 3 eggs.
Pour the mixture into a greased 9 x 13-inch baking pan.
Bake according to package directions, testing with a toothpick in the center that should come out clean when done.
Remove from oven and let cool completely.
While the cake is baking clean and slice strawberries.
Add 1/2 cup of granulated sugar and let sit in a bowl for ten minutes.
Then lightly chop in a food processor.
Make the whipped cream frosting by combining 2 cups of heavy cream with 1/4 cup of powdered sugar, 1/2 teaspoon of cream of tartar, and 1 teaspoon of vanilla.
Beat on high using an electric mixer for about 4 to 5 minutes until you get stiff peaks. Refrigerate until ready to use.
Once the cake is cool spread the strawberries over the top.
Add the whipped cream frosting next by spooning large drops all over and using a spatula to gently spread it all over the top.
Garnish with a fanned strawberry.
Keep in the fridge until ready to serve.
Notes
If your strawberries are very ripe and sweet you can skip the 1/2 cup of sugar.Similarly, you can adjust the sweetness of the whipped cream topping by adding a little more or less of the powder sugar.
Nutritional information is provided as a courtesy and is an estimate only. This information comes from online calculators. Although attempts have been made to provide accurate nutritional information, these figures are only estimates.