Directions:

• Step 1: Preheat your oven to 350°F (175°C). Grease your 9x13-inch baking pan or line it with parchment paper for easy removal.
• Step 2: In a medium bowl, whisk together the all-purpose flour, baking soda, and salt. Set this mixture aside.
• Step 3: In a large mixing bowl, combine the melted butter, packed brown sugar, and granulated sugar. Whisk until smooth and well blended.
• Step 4: Add the egg, egg yolk, and vanilla extract to the butter-sugar mixture. Mix until fully incorporated.
• Step 5: Gradually add the dry ingredients to the wet ingredients, stirring until just combined. Be careful not to overmix; a few lumps are okay.
• Step 6: Gently fold in the butterscotch chips with a spatula until evenly distributed throughout the batter.
• Step 7: Pour the batter into the prepared baking pan, spreading it evenly. Drizzle the salted caramel sauce over the top and use a knife to swirl it gently into the batter.
• Step 8: Bake in the preheated oven for 25-30 minutes, or until the edges are golden and a toothpick inserted into the center comes out with a few moist crumbs.
• Step 9: Allow the blondies to cool in the pan on a wire rack for about 10 minutes. Then, sprinkle with sea salt before transferring the blondies to the cooling rack to cool completely. Cut into squares and enjoy!