1Brown 1/2 cup of salted butter in a pan. Once browned, mix with 1/2 cup of light brown sugar, 1.5 Tablespoons of ground cinnamon and 1/4 teaspoon of vanilla extract.
2Prepare a batch of same-day focaccia dough and spread it on a baking pan lined with parchment paper.
3Spread half of the cinnamon filling over the dough. Fold it over, flip it, and let it proof for 1-1.5 hours.
4Preheat the oven to 215C/420F and bake for 18-23 minutes.
5While baking, mix 125g of powdered sugar, 2-3 Tablespoons of milk, a dash of vanilla extract, and a sprinkle of cinnamon to make the glaze.
6Once the focaccia is baked, drizzle the glaze over it and brush it on top, sides and bottom.