3/4cup(1 1/2 sticks) unsalted butter, at room temperature
1 1/2cupssugar
2large eggs
1teaspoonpure vanilla extract
3/4cupsour cream
2cupsall-purpose flour
2/3cupunsweetened cocoa powder
1/2teaspoonsalt
2teaspoonsbaking soda
1cupbuttermilk
Orange glaze (recipe follows)
Orange Glaze
1 1/2cupspowdered sugar
1/4cup(1/2 stick) unsalted butter, melted
1/2teaspoonfreshly grated orange zest
3tablespoonsfresh orange juice
1teaspoonpure vanilla extract
Instructions
Bundt Cake
Preheat oven to 350 degrees. Grease and flour a 12-cup fluted tube pan.
Sift together the flour, cocoa powder, and salt into a small bowl. Set aside. In a liquid measuring cup combine baking soda and buttermilk. Set aside.
Using an electric mixer, beat butter, sugar, eggs, and vanilla until light and fluffy, about 30 seconds. Stir in sour cream on low speed. Add the flour mixture and buttermilk mixture alternatively, starting and ending with flour mixture. Beat batter for 2 minutes on medium speed. Pour batter evenly into prepared pan.
Bake for 40-50 minutes, or until a wooden toothpick inserted into the center comes out clean. Cool in pan for 10 minutes then remove cake to a wire rack to cool completely. Glaze with orange glaze (recipe below).
Orange Glaze
In a medium bowl combine all ingredients and beat until smooth.