Maple Walnut Coffee Cake Recipe Type: Breakfast/Brunch Cuisine: American Author: Prickly Gourmet Prep time: 10 mins Cook time: 35 mins Total time: 45 mins Serves: 9 servings; 1 slice per serving Ingredients Streusel 1/2 cup light brown sugar 1/4 cup all-purpose flour 1/4 cup finely chopped California walnuts 1/2 teaspoon ground cinnamon 3 tablespoons unsalted