CHOCOLATE BUNDT CAKE with SWEET WALNUT LAYER: National Walnut Day

Today is National Walnut Day, and you can't go wrong with this versatile nut! Here walnuts are used as the sweet layer in this Chocolate Bundt Cake. I first saw this recipe on Fine Cooking. I made a few changes, but the essence is there. I'm sure you'll make a few changes, too. The original recipe called for plain yogurt. I've made this bundt cake with Greek yogurt...a little tangy, but very tasty, but actually I prefer sour cream for richness. Try it both ways and see what you think!

Chocolate Bundt Cake with  Sweet Walnut Layer

Ingredients

Cake
1 1/4 cups all purpose four
3/4 cup dark cocoa
Dash of Salt
1 tsp baking soda
1 tsp baking powder
2 Tbsp unsalted butter, melted
2 Tbsp canola oil
2 eggs
2 egg whites
1 1/2 cups sour cream
2 tsp vanilla extract
3/4 cup sugar
3 ounces of dark chocolate (70-85% cacao) I like it really dark
1 Tbsp powdered sugar-optional

Walnut Layer
1/3 cup chopped walnuts
1/3 cup dark brown sugar
2 tbsp unsalted butter, melted

Directions
Preheat oven to 350.
Oil bundt pan.
Whisk in bowl flour, cocoa, salt, baking powder, and soda. Then sift into another bowl.
In a different bowl, whisk melted butter and oil, and then add eggs and egg whites. Fold in sour cream, vanilla extract, and sugar.
Melt chocolate in double boiler or saucepan over saucepan over simmering water.
Fold chocolate into batter.
Add dry ingredients and stir until combined. Do not overmix.
Mix melted butter, walnuts, and brown sugar together.
Pour half batter into pan and place walnut layer on top of batter.
Fill with remaining batter.
Bake 35-45 minutes, until toothpick comes out clean.
Cool on wire rack in pan for 15 minutes and then, flip over on rack.
Top with powder sugar (optional)