Tahini Brownies

Ingredients

• 1/2 cup butter, softened
• 1-1/3 cups sugar
• 1 cup plus 3 tablespoons tahini, divided
• 4 large eggs, room temperature
• 1 teaspoon vanilla extract
• 1 cup all-purpose flour
• 1/2 cup whole wheat flour
• 2/3 cup Dutch-processed cocoa
• 4 ounces vanilla or chocolate halva