For a classic look, spread half the batter, sprinkle a layer of cinnamon sugar, and then add the remaining batter before the final crumb topping [24].
1 egg, ½ cup sour cream (for moisture), ¼ cup milk, ¼ cup melted butter, and 1 tsp vanilla extract [13, 43] For the Crumb Topping: Sugar: ½ cup brown sugar [13, 43] Flour: 1/3 cup all-purpose flour [13, 43] Spice: 1 ½ tsp ground cinnamon [13, 43] Fat: ¼ cup cold, cubed butter [13, 43] Instructions
Use a box of yellow cake mix, 1 cup of sour cream, 3 eggs, and ½ cup of vegetable oil for a faster prep [11]. coffeecake
Watch this step-by-step guide to achieving the perfect moist crumb and crunchy topping for your coffee cake: Cinnamon Crumb Coffee Cake Recipe Amateur Investigator YouTube• Apr 26, 2026
In a medium bowl, whisk together the flour, sugar, baking soda, and salt [13, 43]. For a classic look, spread half the batter,
Mix the brown sugar, flour, and cinnamon. Cut in the cold butter with a fork until the mixture is clumpy and crumbly. Sprinkle it generously over the batter [13, 43].
Bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean [13, 43]. Mix the brown sugar, flour, and cinnamon
This recipe features a moist, buttery base with a thick, crunchy streusel topping. For the Cake: Flour: 1 ½ cups all-purpose flour [13, 19, 43] Sugar: ½ cup granulated sugar [13, 19, 43] Leavening: ½ tsp baking soda and ½ tsp salt [13, 43]