my favorite chocolate cake recipe

12 Tbsp unsalted butter, soft(plus extra for greasing pans)
1 3/4 C. all-purpose flour (plus extra for dusting pans)
4 Oz. unsweetened chocolate, coarsley chopped
1/4 C. Dutch-processed cocoa
1/2 C hot water
1 3/4 C sugar
1 1/2 tsp baking soda
1 tsp salt
1 C buttermilk
2 tsp vanilla
4 Lg eggs, plus 2 lg egg yolks

oven: 350 degrees
grease 2 9" round pans and dust

combine: chocolate, cocoa, hot water in medium bowl
Set over saucepan w/ 1" simmering water and stir with rubber spatula until chocolate is melted (~ 2 min). Add 1/2 C sugar and stir till glossy (~1-2 min)
Remove and set aside to cool.

Whisk: flour, baking soda, salt in bowl

Combine: buttermilk and vanilla in sm bowl.

In bowl for mixer fitted w/ whisk: whisk eggs & yolks on med-low speed until combined. ~10 sec.
Add 1 1/4 C sugar, beat on high until fluffy and lightened in color ~2-3 min.
Switch to paddle.
Add cooled chocolate to the egg/sugar and mix until blended ~30-45 sec
Add softened butter gradually
Add 1/3 of the flour then buttermilk then flour then buttermilk then flour.

bake 25-30 min until toothpick comes out clean.