Toasted Marshmallow Sweet Potato Casserole

For the Sweet Potato Base

• 3 large sweet potatoes, peeled and cubed
• 2 tbsp coconut oil or dairy-free butter
• 1/4 cup maple syrup or coconut sugar
• 1/4 cup full-fat coconut milk or oat milk
• 1 tsp cinnamon
• 1/2 tsp nutmeg
• 1 tsp vanilla extract
• Pinch of salt

For the Topping

• 1 1/2 cups mini vegan marshmallows (soy-free if needed; Dandies are a good brand)
• 1/4 cup chopped pecans or walnuts (optional)
• 1 tbsp coconut sugar or maple sugar (optional, for extra toastiness)