With a double dose of peanut butter in the blondies, a nutty brown butter chewy base and a touch of sweet from the dollop of jelly, these salted blondies are the classic PB & J sandwich reincarnated.
Preheat oven to 350 degrees F. Grease an 8 x 8 inch baking pan. Line with parchment and grease parchment.
In a medium bowl, whisk together flour, baking powder and salt. In another medium bowl, whisk together eggs, brown sugar, peanut butter, melted butter and vanilla extract until well combined. Fold in the dry ingredients and mix until just combined. Fold in the peanut butter chips. Scrape the batter into the prepared pan and smooth the top. Dollop the jelly on top of batter and spread if desired. Sprinkle chopped roasted peanuts.
Bake until a toothpick comes out clean, about 35-40 minutes. Remove from oven and sprinkle with coarse sea salt.