• preheat oven to 350 degrees. Line an 8 x 8 inch cake pan with parchment paper. Allow the paper to hang over the sides of the pan for easy removal. Sift the dry ingredients into a medium mixing bowl until combined and there are no lumps. Set aside
• Place the butter into a large mixer bowl. Beat on medium for 30 to 45 seconds or until smooth. Scrape down the sides of the bowl and push the butter to the center of the bowl. Beat in the eggs and yogurt on medium-low until fully combined with the butter.
• If no standing mixer use a hand mixer or wooden spoon. Keep mixer on medium-low and gradually add the dry ingredients to the wet ingredients in small amounts. Allow the wet ingredients to beat into the dry ingredients after each addition until fully added.
• Stop and scrape down the sides of the bowl as needed. Once fully added continue beating until a very thick batter forms. Scrape down the sides pf the bowl and push the batter to the center of the bowl. Gradually fold in the white chips (if using) until fully combined.
• Gradually and carefully fold in the berries until evenly distributed throughout the batter. Be careful not to smash the berries. Scoop the batter into the prepared cake pan. Use a wooden spoon or hands and press the batter firmly and evenly throughout the pan. Again, be careful not to smash the berries.
• Bake in the preheated oven at 350 degrees for 20 to 35 minutes or until golden and a tester comes out clean. If using frozen berries, the blondies will take closer to the 30 to 35 minutes to bake. Remove the blondies from the oven. Allow to cool in the pan at least 1 hour to firm up.
• Grasp the overhanging parchment paper and carefully lift the blondie slab out and transfer to a wire rack. Allow the blondie slab to cool completely before cutting it into bars of your desired size.

Optional Topping

• If desired as soon as the blondies are removed from the oven immediately sprinkle some more keto white chocolate chips over the top of the hot blondie slab. Allow the chips to sit 10 minutes or until the chips are beginning to melt. Once melted use a butter knife and spread the chips into lines over the top of the slab (see video) Then allow the bars to cool in the pan at least 1 hour to firm up.