Epic 12 Layer Chocolate Cake

INGREDIENTS

Egg yolks, large

Eggs, large

4 cups

All-purpose flour

2 tsp

Baking powder

4 tsp

Baking soda

4 oz

Bittersweet chocolate

Chocolate sprinkles

2 cups

Cocoa powder, unsweetened

1/4 cup

Cornstarch

6 7/16 cups

Granulated sugar

2 3/8

Heaping tsp Salt

4 tsp

Vanilla extract

1 tsp

Vanilla extract or 2 teaspoons imitation vanilla flavoring, pure

2/3 cup

Neutral-tasting oil

(57 grams) cold unsalted butter, cut into 4 pieces, unsalted

5/8 cup

Butter, unsalted

2 cups

Double creme

2 cups

Sour cream or greek yogurt

2 1/4 cups

Whole milk

3 1/4 cups

Water

12 1/2 ounces/ 354 grams bittersweet or semisweet chocolate or a combination of both (I used 1/2 bittersweet, 1/2 semisweet)