Salted Chocolate Pistachio Shortbread

Bahan-bahan (24 porsi)

• 1 cup (16 Tbsp; 226g) unsalted butter, softened to room temperature
• 1/2 cup (100g) granulated sugar
• 1/4 cup (50g) light brown sugar
• 1 teaspoon pure vanilla extract
• 1 teaspoon salt
• 2 and 1/4 (281g) cups all-purpose flour (spooned & leveled)
• 1 cup (100g) finely chopped pistachios, divided*
• 8 ounces (226g) semi-sweet chocolate, coarsely chopped
• optional: flaky sea salt for sprinkling on top