Raspberry Ginger Rhubarb Crumble (GF + Vegan)

Name: Raspberry Ginger Rhubarb Crumble
Ingredients: 1 cup Raspberries (fresh or frozen); 1 cup Rhubarb (chopped); 2 tbsp Sugar; 1/2 cup GF Oats; 1/4 cup GF All Purpose Flour; 1/4 cup Walnuts (chopped); 2 tbsp Sugar; 1 tsp Ginger; 1 tbsp Maple Syrup; 2 tbsp Coconut Oil