Coffee Cake with a Cinnamon Sugar Ripple and Crumbly Streusel Topping

My deliriously soft coffee cake has a surprise ripple of cinnamon in the middle and a super simple streusel topping. This recipe takes just 30 minutes to prep and makes enough to feed a crowd (if you're willing to share!).

Recipe: https://sugarspunrun.com/cinnamon-cof...

Ingredients
½ cup unsalted butter softened (113g)
8 oz cream cheese softened (225g)
1 cup light brown sugar tightly packed (200g)
½ cup granulated sugar (100g)
2 large eggs
1 ½ teaspoon vanilla extract
2 ½ cups all-purpose flour (335g)
2 teaspoons baking powder
1 teaspoon cornstarch
½ teaspoon salt
½ cup buttermilk (120ml)

Cinnamon Swirl
¼ cup sugar (50g)
1 ½ teaspoon cinnamon

Streusel Topping
1 ⅓ cup all-purpose flour (175g)
1 cup + 2 Tbsp brown sugar packed (225g)
3 Tablespoons granulated sugar
4 ½ teaspoons cinnamon
¼ teaspoon salt
10 Tablespoons unsalted butter melted (140g)

Glaze (optional)
½ cup powdered sugar (65g)
2-3 teaspoons milk

Disclaimer: As an Amazon Associate I earn from qualifying purchases from the links below.
13x9 baking pan (Affiliate Link): https://amzn.to/35EgLK1
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Instructions
00:00 Introduction
00:34 Preheat oven to 350F and lightly grease and flour a 13x9 baking pan.
00:38 In stand mixer, or using an electric mixer in large bowl, cream together butter and cream cheese.
01:00 Beat in sugars until light and fluffy.
01:15 Add eggs, one at a time, beating until combined. Scrape down sides and bottom of mixing bowl with rubber spatula.
01:30 Stir in vanilla extract.
01:36 In a separate, medium-sized bowl, whisk together flour, baking powder, cornstarch and salt.
01:56 Gradually add flour mixture to wet ingredients, alternating with buttermilk, until all of the flour mixture and buttermilk have been combined.
02:46 Quickly whisk together sugar and cinnamon for cinnamon ripple layer in a small bowl.
02:55 Spread about half of the batter into prepared pan (batter will be thick).
03:18 Sprinkle cinnamon sugar mixture evenly over the batter.
03:24 Dollop remaining batter over the cinnamon sugar layer and use a knife to spread evenly overtop. It's OK if you end up disturbing the cinnamon sugar layer a bit, it will be a nice swirl when it bakes. Prepare your streusel topping.
Streusel
03:59 Melt butter in a medium-sized bowl on 10 second increments (stirring between) until just melted (you don't want it to be too hot, if it does get too hot allow to cool.
04:21 Use a fork to whisk together your flour, sugars, cinnamon, and salt. Pour melted butter over mixture and use a fork to stir until combined (mixture should be crumbly).
05:15 Sprinkle streusel evenly over batter.
05:24 Bake on 350F for 40-50 minutes (check doneness with a toothpick inserted in center).
05:48 Allow to cool before cutting and serving.
Glaze (optional)
05:53 If desired, make glaze by whisking together powdered sugar and milk. Drizzle over cooled coffee cake.

Notes
Store leftover coffee cake in an airtight container at room temperature for up to 3 days.

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