Vanilla Custards with Roasted Blueberries – Vanilla Bay Noir

Ingredients

• 1 cup whole milk
• 2 tsp homemade vanilla extract (or seeds from 1 vanilla bean)
• 3 large egg yolks
• ¼ cup granulated sugar
• 3 Tbsp all-purpose flour
• 1 to 2 Tbsp unsalted butter
• 1 cup blueberries
• 1½ tsp granulated sugar
• Juice from a wedge of lemon, or to taste