A soft buttery coffee cake layered with cinnamon filling and topped with a sweet crumbly streusel topping.

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2½ cups all-purpose flour

1 teaspoon baking powder

½ teaspoon baking soda

½ teaspoon salt

1 cup unsalted butter, softened

1¼ cups granulated sugar

3 eggs

2 teaspoons vanilla extract

1 cup sour cream

½ cup brown sugar

1 tablespoon cinnamon

¾ cup flour

½ cup brown sugar

1 teaspoon cinnamon

6 tablespoons cold butter

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1. Preheat oven to 350°F and grease a 9×13-inch pan.

2. Make the streusel topping and set aside.

3. Whisk dry ingredients together.

4. Cream butter and sugar until fluffy.

5. Add eggs and vanilla.

6. Alternate flour mixture and sour cream.

7. Spread half the batter into pan.

8. Add cinnamon filling.

9. Top with remaining batter.

10. Sprinkle with streusel.

11. Bake 35 to 40 minutes.

12. Cool and serve.

Use room temperature ingredients.

Keep butter cold for streusel.

Store covered for freshness.