For the cake:
3 cups all-purpose flour
1 cup granulated sugar
1 tbsp baking powder
1 ½ cups milk
2 large eggs
8 tbsp unsalted butter, melted
1 tsp vanilla extract
For the topping:
1 cup softened butter
1 cup packed brown sugar
3 tbsp all-purpose flour
3 tsp cinnamon
For the glaze:
2 cups powdered sugar
⅓ cup milk
1 tsp vanilla extract
Preheat oven to 350°F.
In a mixing bowl, blend all cake ingredients until smooth. Spread mixture into a well-greased 9x13 baking dish.
In another bowl, mix topping ingredients until creamy. Drop spoonfuls onto cake mixture, then swirl with a butter knife.
Bake for 40-45 minutes until a knife comes out clean from the center.
Mix glaze ingredients until smooth and pour over warm cake.
Allow glaze to set before serving.