Black & White Coffee Cake

Ingredients

• 1 cup mini semisweet chocolate chips
• 3/4 cup finely chopped pecans (optional)
• 1 tbsp. unsweetened cocoa powder
• 1/2 tsp. pumpkin pie spice
• 3 cups all-purpose flour
• 1 1/2 tsp. baking soda
• 1 1/2 tsp. baking powder
• 1 tsp. pumpkin pie spice
• 1/2 tsp. salt
• 3/4 cup unsalted butter, at room temperature
• 1 1/3 cups sugar
• 3 large eggs
• 1 container (16 oz.) sour cream
• 2 tsp. vanilla extract
• 3/4 cup confectioner’s sugar
• 1 tbsp. warm water
• 2 oz. bittersweet chocolate, chopped
• 1/4 cup heavy cream
• 1 1/2 tsp. unsalted butter
• 1 1/2 tsp. light corn syrup