• Preheat oven to 350 degrees and line a 9X9 square pan with parchment paper.
• Combine the melted butter and sugar in the bowl of a stand mixer with the paddle attachment. Mix until combined
• Add in eggs and egg yolk and mix until eggs are combined. Add in vanilla
• In a seperate bowl mix together flour, baking soda, salt and cinnamon
• Slowly pour flour mixture into wet mixture and mix until just combined
• Spoon the mixture into your prepared baking pan and spread out evenly into the pan

For the crumble topping

• Mix the brown sugar and granulated sugar in a medium bowl.
• Add the melted butter to the sugar and mix with a whisk
• Once combined add in the flour and cinnamon and continue to mix until combined.
• As it comes together it may be easier to mix with a spatula or a spoon. When the mixture comes together it will be the consistency of playdough
• Take the mixture and with your hands crumble it on top of the blondie dough. Cover the entire pan with the crumble mixture
• Bake for 35 - 40 minutes or until a toothpick inserted comes out clean.

For the drizzle

• Combine the milk or cream with the powdered sugar until combined.
• If the mixure is too thin, add more sugar. If it is too thick, add more milk or cream
• Allow the bars to cool before drizzling with the vanilla glaze
• Enjoy!