Snickerdoodle Blondie Bars

Recipe courtesy Bryan Bevel of The Pitch Pizza & Pub.

Ingredients
For the Snickerdoodle Topping:
2 tablespoons granulated sugar
½ teaspoon ground cinnamon

For the Blondies:
11/3 cup all-purpose flour
1 teaspoon baking powder
1 teaspoon fine sea salt
¼ teaspoon ground cinnamon
2/3 cup unsalted butter, melted
½ cup plus 2 tablespoons granulated sugar
1 large egg
1 egg yolk
2 teaspoons pure vanilla extract

Instructions
Heat the oven to 350° and have ready a greased 8-by-8-inch baking dish. In a small bowl, stir together the topping—2 tablespoons of granulated sugar and a ½ teaspoon ground cinnamon. Set aside until ready to use. In a medium-sized mixing bowl, whisk together the flour, baking powder, sea salt and ¼ teaspoon cinnamon. Set aside until ready to use. In a large mixing bowl, mix together melted butter, ½ cup plus 2 tablespoons granulated sugar, egg, egg yolk and vanilla until well combined. Add the dry ingredients and mix with a sturdy spoon until the dough comes together. Be careful to not overmix the batter. Transfer the dough to the baking dish and spread evenly from edge to edge. Sprinkle the cinnamon and sugar topping over the dough and bake for 22 to 24 minutes. Cool for 15 to 20 minutes.