Chocolate Walnut Bundt Tunnel Cake

No need to ice. An exquisite crust invites nibbling.

• Ready In: 1 hr 25 mins
• Serves: 12

Ingredients

• FOR THE CAKE

• 1  cup  soft butter (250 mL)
• 1 1⁄2 cups sugar (375 mL)
• 2  egg yolks
• 2  eggs
• 2  teaspoons vanilla (10 mL)
• 2 1⁄2 cups all-purpose flour (625 mL)
• 2  teaspoons baking powder (10 mL)

• FOR THE FILLING

• 1 1⁄2 cups brown sugar (375 mL)
• 4  tablespoons  unsweetened cocoa (60 mL)
• 1  teaspoon vanilla (5 mL)
• 1⁄2 cup walnuts, finely chopped (125 mL)
• 1  cup chocolate chips (semi-sweet, 250 mL)
• 2  egg whites

Directions

1. Preheat oven to 350°F Grease and flour bundt pan.
2. FOR THE FILLING: Combine brown sugar, cocoa, vanilla, walnuts and chocolate chips. Beat the egg whites until they are stiff and fold into the mixture.
3. FOR THE CAKE: Beat until light the soft butter. Add sugar and cream well. Beat together the egg yolks, 2 eggs, and vanilla and add to the sugar and butter mixture.
4. Sift together the flour and baking powder. Beat flour into the butter egg mixture.
5. Pour three quarters of batter into prepared bundt pan and make a groove through it with the back of a spoon.
6. Fill groove with chocolate mixture. Cover with remaining batter. Bake 60 to 70 minutes until tested done.
7. Nuts About Chocolate.