Puff Pastry Blueberry Cobbler Recipe

Ingredients

• 1 sheet frozen puff pastry
• 1 pound blueberries (frozen or fresh, don't thaw frozen berries in advance)
• 1/4 - 1/2 cup sugar (depending on how sweet the berries are)
• 2 tsp. fresh lemon zest
• 1 tsp. ground cardamom
• 1 1/2 Tbsp. instant tapioca, ground* or
• 1 Tbsp. tapioca starch or
• 1 Tbsp. corn starch
• 1 Tbsp. butter, cut into small pieces