Fudgy Nutty Streusel Bars | Food Stuff

Ingredients

• 1/2 teaspoon baking powder
• 10 ounces bittersweet chocolate, chopped
• 1/4 to 1/2 teaspoon coarse salt
• 1 large egg yolk
• 1 & 1/2 cups all-purpose flour
• 1/2 cup packed light brown sugar
• 1/2 cup toasted nuts, chopped
• 1/2 teaspoon salt
• 14 ounces sweetened condensed milk
• 10 tablespoon unsalted butter, softened