Pecan Shortbread with Salted Caramel Sauce

Ingredients

• 8 oz unsalted butter, softened, such as Kerrygold
• 1/4 c granulated sugar
• 1/4 c packed dark brown sugar
• 1 tsp. vanilla bean paste
• 1/2 tsp. kosher salt
• 1 3/4 c all-purpose flour
• 1 2/3 c chopped pecans, toasted
• 1 c granulated sugar
• 3 tbsp. water
• 3/4 c heavy cream
• 1 tbsp. butter
• 1/2 tsp. vanilla bean paste