1/2cupUnsalted butter 113 gms, melted (measured before melting)
CINNAMON FILLING:
1cupUnsalted Butter 226 gms, softened
1cupBrown sugar I used soft light brown sugar
2tbspPlain flour
1tbspCinnamon
GLAZE:
2cupsIcing sugar
5tbspMilk
1tspVanilla essence
Instructions
Preheat oven at 180 C, for 10 mins before baking.
Into your stand mixer, or large mixing bowl put 3 C flour, 1/4 t salt, 1 C sugar, 4 t baking powder, 2 eggs and 2 t vanilla. Pour the 1 1/2 C milk over the other ingredients and mix well.
While the mixer is still running slowly add the 1/2 C melted butter. Mix just until combined.
Spray a 9×13 pan with cooking spray or grease with butter and spread the batter out evenly in the pan.
To make the cinnamon filling use a small bowl and a wooden spoon to combine 1 C softened butter, 1 C brown sugar, 2 T flour and 1 T cinnamon.
Drop the cinnamon filling by spoonfuls onto the cake batter.
Take a butter knife and drag it through both the cinnamon and cake batter layers, making a pretty marble effect.
Bake this at 180 C, in the preheated oven, for 35-40 minutes, or until a knife inserted into the center comes out clean.
In a small mixing bowl whisk together 2 C powdered sugar, 5 T milk and 1 t vanilla. Pour the glaze over the warm cinnamon cake. Serve warm, or at room temperature.
Notes
I made only half the qty of the above recipe. For half the qty of cake, I used only 1/2 - 3/4 cup of Icing sugar for the glaze.I used a 7 inch square tin to bake half the qty.The cake keeps well for 2-3 days at room temp in an airtight container, unless you live in a extremely humid / hot place.