Best Twinkie Cake

5 from 1 vote

My Twinkie Cake features a super moist yellow cake filled with an old fashioned flour based frosting called Ermine. It is easy to make, doesn't require any piping skills, and isn't overly sweet.

Course Dessert

Cuisine American

Prep Time 20

Cook Time 28

Total Time 48

Servings Slices

Calories 447kcal

Author Krystle Smith

Ingredients

For the Cake

1 Box Yellow Cake Mix 15.25 Ounces
1 Box Vanilla Instant Pudding Mix 3.4 Ounces, NOT Cook and Serve
4 Eggs Room Temperature
1 Cup Whole Milk
½ Cup Vegetable Oil
1 Teaspoon Vanilla

For the Ermine Frosting

1 Cup Whole Milk
5 Tablespoons Flour
1 Cup Unsalted Butter Softened
1 Cup Granulated Sugar
1 Teaspoon Vanilla
1 Pinch Salt

Instructions

For the Cake

Preheat the oven to 350°F. Grease and line a 9×13-inch pan with parchment paper.
In a large bowl, combine the cake mix and pudding mix.
Stir in the eggs, milk, oil, and vanilla. Mix until smooth about 2 minutes. Pour into prepared pan.
Bake for about 30-40 minutes, or until a toothpick inserted near the center comes out with just a few moist crumbs.
Let the cake cool in the pan for 10 minutes, then move it to a wire rack to cool completely.
Slice cake in half horizontally.

For the Frosting

In a medium saucepan, whisk milk and flour until smooth. Cook over medium heat whisking constantly until it thickens. It should resemble pudding.
Transfer to a bowl and cool completely. Press plastic wrap on top to prevent a skin from forming.
In a large bowl, beat butter and sugar until light and fluffy about 3-5 minutes.
Stir in the cooled flour mixture one tablespoon at a time. Stir in salt and vanilla.
Beating for another 2–3 minutes or until smooth and cloud like.

Notes

Don't Overbake: Bake until a toothpick inserted has a few moist crumbs. If it's totally clean it may be dry.
Cut with a serrated knife only when fully cooled. Let the knife do the work, pressing too hard can cause it to crack.
Frosting Is Greasy: This could happen if you don't cool the milk/flour paste enough. To fix it, warm it and rewhip.
It can take longer than usual at least 4-5 full minutes to achieve the super light cloud like texture.

Store leftovers in the fridge for up to 5 days.

Nutrition