Preheat oven to 350 degrees.

In a large bowl, add sugar, flour, baking powder, and salt. Whisk together until well combined.

Add in the milk, eggs, and vanilla and beat together until combined. While mixing, drizzle in the melted butter until combined,

Pour the batter into a greased 9×13 pan.

In a medium bowl, mix together all the of the topping ingredients until combined.

Spread topping evenly on the batter and swirl with a knife.

Bake at 350 degrees for 30-35 minutes until a toothpick inserted in the center comes out clean.

For the glaze, mix all the ingredients together until it's the consistency like pancake syrup.

While cake is warm, drizzle the glaze over the cake and it will set into a harder glaze.