Blueberry Chamomile Galette

Bahan-bahan (8 porsi)

• 1/4 cup honey
• 2 chamomile tea bags
• 2 cups fresh blueberries
• 1 tablespoon cornstarch
• 2 teaspoons lemon juice
• 1 teaspoon vanilla extract
• 1 sheet frozen puff pasty, thawed
• 1 egg, beaten
• coarse sugar, for sprinkling
• vanilla ice cream, for serving