Dough and Crumble – 3 cups almond flour – 1 cup Lakanto Monkfruit Sweetener – ½ cup coconut flour – 1 tsp baking powder – ¼ tsp salt – ¼ cup whey protein powder vanilla or plain – 1 egg large – 1 cup butter cold and cut into small bits – Zest of one lemon Blueberry Filling – 4 cups blueberries I use frozen – ½ cup Lakanto Monkfruit Sweetener – ½ tsp xanthan gum – Juice of one lemon – ⅓ cup almonds sliced (optional)