Sour Cream-Orange Coffee Cake With Chocolate-Pecan Streusel

Ingredients

• 1 1/2 cups (packed) golden brown sugar
• 1 tablespoon ground cinnamon
• 6 tablespoons (3/4 stick) chilled salted butter, diced
• 1 1/2 cups coarsely chopped pecans
• 1 cup (6 ounces) semisweet chocolate chips
• 3 cups all purpose flour
• 1 1/2 teaspoons baking soda
• 1 1/2 teaspoons baking powder
• 1 1/3 cups sugar
• 3/4 cup (1 1/2 sticks) salted butter, room temperature
• 3 large eggs
• 1 1/2 teaspoons grated orange peel
• 1 1/2 teaspoons vanilla extract
• 1 1/2 cups sour cream
• 1/4 cup orange juice
• powdered sugar