This Chocolate Chip Coffee Cake is a homemade coffee cake that is filled with sweet chocolate morsels and topped with a delicious cinnamon crumble topping.
Preheat oven to 350 degrees and grease a 9-inch square pan with nonstick baking spray.
Add the 2 cups all-purpose flour, 2 teaspoons baking powder, and 1 teaspoon salt in a large bowl and whisk until combined. Set aside.
In a separate bowl, add in the 1/2 cup butter and 1 cup granulated sugar. Using a hand mixer, beat on medium until creamed.
Add the 2 large eggs, one at a time, and beat until incorporated.
Add in the 3/4 cup sour cream or plain greek yogurt and 1/4 cup whole milkMix again until well combined.
Add the dry ingredients slowly into the wet ingredients as you continue to beat with the hand mixer until combined.
Fold the 1 cup semi-sweet chocolate chips into the batter with a spatula.
Pour the batter into your prepared dish and prepare the crumble topping.
Crumble Topping
Add the 3 tablespoons butter, 1/2 tablespoon ground cinnamon, 1/2 cup all-purpose flour, and1/2 cup light brown sugar together in a medium bowl. Using a pastry blender or food processor, blend until a fine crumble forms.
Sprinkle the topping over the cake batter and top with the 1/4 cup semi-sweet chocolate chips.
Bake for 35-45 minutes, until a toothpick comes out clean or with moist crumbs. Best served warm, but still very good after cooled.
Store in an airtight container at room temperature.
Glaze
Add the 1/2 cup powdered sugar, 1 - 2 tablespoons whole milk, and 1/4 teaspoon vanilla extract to a small bowl. Whisk to combine.
Drizzle the glaze on top of the coffee cake.
Notes
Storage: Store covered or in an airtight container at room temperature for up to 5 days.