Easy Keto Blackberry Cobbler

Ingredients

• 3 cups fresh blackberries
• ¼ cup granulated erythritol
• 1 tbsp lemon juice
• ½ tsp xanthan gum
• ¼ tsp ground cinnamon
• 1 ½ cups almond flour
• ¼ cup coconut flour
• ⅓ cup granulated erythritol
• 1 tsp baking powder
• ¼ tsp salt
• ¼ cup unsalted butter, melted
• 1 large egg
• ½ tsp vanilla extract