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Coffee Cake with Cinnamon Brown Sugar Streusel and Optional Icing Recipe

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4.1 from 13 reviews

This classic Coffee Cake recipe features a tender, moist cake topped with a buttery cinnamon streusel and an optional sweet icing drizzle. Perfect for breakfast or dessert, it combines simple ingredients into a comforting treat with a delightful texture contrast and a hint of warm cinnamon.

Ingredients

Cake:

  • 1 egg
  • 1/4 cup oil (vegetable or canola)
  • 1 tsp vanilla extract
  • 3/4 cup sugar
  • 1/2 cup milk
  • 1/4 tsp salt
  • 2 tsp baking powder
  • 1 1/2 cups all-purpose flour

Streusel:

  • 2 tbsp butter (melted)
  • 1/2 cup brown sugar
  • 2 tsp cinnamon
  • 2 tbsp all-purpose flour
  • 1/2 cup walnuts (chopped, optional)

Icing (optional):

  • 1 tbsp butter (room temperature)
  • 3/4 cup powdered sugar
  • 1 tbsp milk (extra, if needed)

Instructions

  1. Preheat Oven: Preheat your oven to 375°F (190°C) to prepare for baking the coffee cake.
  2. Mix Batter: In a mixing bowl, beat 1 egg, then add 3/4 cup sugar, 1/2 cup milk, 1/4 tsp salt, 1/4 cup oil, and 1 tsp vanilla extract. Mix well to combine all wet ingredients.
  3. Add Dry Ingredients: Spoon 1 1/2 cups flour into a measuring cup, then dump it on top of the batter. Sprinkle 2 tsp baking powder over the flour. Gently mix the baking powder into the top half of the flour, then stir this flour mixture into the batter until just combined.
  4. Prepare Pan: Pour the batter into a greased or parchment-lined 9×9 inch baking dish, spreading evenly.
  5. Make Streusel: In a microwave-safe bowl, melt 2 tbsp butter. Remove from microwave, then stir in 1/2 cup brown sugar, 2 tsp cinnamon, and 2 tbsp flour until mixture is well combined. Stir in 1/2 cup chopped walnuts if using.
  6. Top Batter: Sprinkle the streusel evenly over the cake batter. Use a finger or the small end of a wooden spoon to poke the streusel halfway into the batter at 12-18 random points to help it integrate with the cake during baking.
  7. Bake: Bake in the preheated oven for 25-30 minutes. Check doneness by inserting a toothpick in the center; it should come out with moist crumbs but no wet batter. Avoid overbaking to keep the cake moist.
  8. Prepare Icing (Optional): If desired, prepare icing by mixing 1 tbsp room temperature butter with 3/4 cup powdered sugar. Thin with 1 tbsp milk or a little more if necessary, to achieve a drizzle-able consistency.
  9. Drizzle Icing: Lightly drizzle the icing over the cooled coffee cake to add a sweet finishing touch.

Notes

  • For a nut-free version, simply omit the walnuts from the streusel.
  • Make sure not to overmix the batter once the flour is added to keep the cake tender.
  • The finger poking of streusel helps create pockets of cinnamon sugar within the cake for extra flavor.
  • Let the cake cool slightly before drizzling icing to prevent it from melting too much.
  • Store leftovers covered at room temperature for up to 2 days or refrigerate for up to 5 days.