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Export 10 ingredients for grocery delivery
Step 1
Preheat oven to 350 degrees. Lightly grease a 9x13 pan.
Step 2
In a large mixing bowl, cream together butter and sugar using a hand mixer until creamy. Then mix in eggs, sour cream, and vanilla extract until combined. Beat in 3 cups flour, baking powder, and salt until just combined. Pour into prepared pan.
Step 3
Make the topping in another mixing bowl by whisking together melted butter, brown sugar, 2 tablespoons flour, and cinnamon. Spoon in globs over the top of the cake batter. Then use a butter knife to swirl it into the batter.
Step 4
Bake in the preheated oven for 35-40 minutes, until a toothpick inserted into the center comes out clean.
Step 5
Meanwhile, make the glaze by whisking together powdered sugar, milk, and vanilla in another bowl. Drizzle over the cake while it is still warm.