Salted Caramel Pretzel Crunch Bars

Bahan-bahan (16 porsi)

• 10 Tablespoons (142g) unsalted butter, slightly soft (see important note!)*
• 1 cup + 2 Tablespoons (141g) all-purpose flour (spooned & leveled)
• 1/4 cup (50g) granulated sugar
• 1/4 teaspoon salt
• 1 large egg yolk, at room temperature
• 1 teaspoon pure vanilla extract
• 1 cup (290g) salted caramel sauce (the full recipe)
• 1 cup (50–60g) chopped pretzels
• 6 ounces (170g) chopped semi-sweet chocolate (or 1 cup (180g) semi-sweet chocolate chips)*
• 2 teaspoons coconut oil
• optional: sea salt