Entirely Elizabeth

23 Melt the unsalted butter in a saucepan on the stove over medium heat. While it's melting add the white chocolate chips to a measuring cup or bowl. 
24 Once the butter is completely melted, pour it over the white chocolate chips and allow the mixture to rest for 5 minutes. Whisk until incorporated and then allow the mixture to cool for 15 to 20 minutes. 
0 Preheat oven to [wprm-temperature value="350" unit="F"] and center oven rack. Line 8x8 inch baking pan with parchment paper and non-stick cooking spray.
8 In a separate bowl add the butter chocolate mixture and granulated sugar. Whisk together for a minute or two until it's fully incorporated and some of the sugar has absorbed.
10 Add the vanilla and then eggs. Whisk until incorporated.
12 Add the flour and salt, use a silicone spatula to fold a few times until the batter begins to come together. 
14 Add the fresh blueberries, and be careful to not overmix the batter. Pour it into the prepared 8x8 baking dish and spread out until it's an even layer.
20 Bake for 35 to 45 minutes. The top and edges should be caramelized and brown. A toothpick test in the center should come out with few crumbs or clean.
22 Allow the blueberry blondies to cool until room temperature.  Remove them from the pan and cut into 12 or 16 slices before serving.