Instructions: 1. Prepare the Crust: Step 1: Preheat your oven to 350°F (175°C). Grease a 9-inch pie dish. Step 2: In a mixing bowl, combine almond flour, maple syrup, melted coconut oil, and salt. Mix until a dough forms.
2. Make the Filling: Step 1: In a saucepan, combine blueberries, maple syrup, lemon juice, cornstarch, and vanilla extract. Step 2: Cook over medium heat, stirring constantly until the mixture thickens, about 5-7 minutes.
3. Assemble the Cake: Step 1: Pour the blueberry filling into the prepared crust, spreading it out evenly. Step 2: In a small bowl, mix together almond flour, rolled oats, melted coconut oil, maple syrup, and cinnamon until crumbly.
4. Bake: Step 1: Place the pie dish in the preheated oven and bake for 25-30 minutes, or until the crust is golden brown and the filling is bubbly.
5. Serve: Step 1: Slice the blueberry pie cake into wedges and serve. Step 2: Optionally, serve with a scoop of vanilla ice cream or a dollop of whipped cream.