Recipes and Cooking Cinnamon Streusel Coffee Cake Using the cast-iron skillet for this tender, swirled coffee cake gives it a nice crusty edge. By BHG Test Kitchen BHG Test Kitchen The Better Homes & Gardens Test Kitchen has been in continuous operation for nearly 100 years, developing and testing practical, reliable recipes that readers can enjoy at home. The Test Kitchen team includes culinary specialists, food stylists, registered and licensed nutritionists, and other experts with Bachelor of Science degrees in food science, food and nutrition, or culinary arts. Together, the team tests more than 2,500 recipes, produces more than 2,500 food images, and creates more than 1,000 food videos each year in the state-of-the-art test kitchen. Learn about BHG's Editorial Process Published on March 11, 2019 Print Rate It Share Share Tweet Pin Email Photo: Brie Passano Prep Time: 30 mins Bake Time: 30 mins Cool Time: 30 mins Total Time: 1 hrs 30 mins Servings: 9 Yield: 9 wedges Jump to Nutrition Facts Ingredients 1 ¾ cup all-purpose flour ¾ cup sugar ¾ teaspoon baking powder ¼ teaspoon baking soda 5 tablespoon butter, cut up 1 egg, lightly beaten ¾ cup buttermilk or sour milk* 1 teaspoon vanilla 1 recipe Streusel 1 recipe Powdered Sugar Icing (optional) Fresh raspberries (optional) Directions Preheat oven to 350°F. Lightly grease a 9- or 10-inch cast-iron skillet. In a large bowl stir together flour, sugar, baking powder, and baking soda. Using a pastry blender, cut in butter until mixture resembles coarse crumbs. Make a well in center of flour mixture. In a small bowl combine egg, buttermilk, and vanilla. Add egg mixture all at once to flour mixture. Stir just until moistened (batter should be slightly lumpy). Spread half of the batter into prepared skillet. Sprinkle with 3/4 cup of the Streusel. Drop remaining batter in small mounds onto layers in skillet; sprinkle with remaining streusel. Bake 30 to 40 minutes or until golden and a toothpick comes out clean. Cool in skillet on a wire rack 30 minutes. If desired, drizzle with Powdered Sugar Icing and sprinkle with raspberries. Serve warm. Streusel In a medium bowl stir together 1/2 cup each packed brown sugar and all-purpose flour and 1 tsp. ground cinnamon. Cut in 1/4 cup butter until mixture resembles coarse crumbs. Powdered Sugar Icing In a small bowl stir together 1 1/4 cups powdered sugar, 1 Tbsp. milk, and 1/2 tsp. vanilla. Stir in additional milk, 1 tsp. at a time, to reach drizzling consistency. *Tip To make 3/4 cup sour milk, place 2 tsp. lemon juice or vinegar in a glass measuring cup. Add enough milk to make 3/4 cup total liquid; stir. Let stand 5 minutes before using. Rate it Print Nutrition Facts (per serving) 345 Calories 13g Fat 54g Carbs 5g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 9 Calories 345 % Daily Value * Total Fat 13g 17% Saturated Fat 8g 40% Cholesterol 52mg 17% Sodium 218mg 9% Total Carbohydrate 54g 20% Total Sugars 30g Protein 5g Vitamin C 0.2mg 1% Calcium 70mg 5% Iron 1.7mg 9% Potassium 94mg 2% Folate, total 61.4mcg Vitamin B-12 0.1mcg *The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.