Preheat your oven to 350 F
In a large bowl, whisk together the maple syrup, eggs, olive oil, applesauce, vanilla and lemon zest until smooth.
Add in the spelt flour, baking soda, and salt and mix well until a thick batter forms.
Fold in your blueberries, reserving some to top. You can toss them in a little spelt flour before adding them to the batter- this will prevent them from sinking to the bottom of the muffins.
In a small bowl, prepare your crumble by mixing together the oat flour and sugar. Add in the hardened coconut oil, and with a fork or your hands, slowly break apart the coconut oil, mixing it into the flour. Be careful not to over mix the crumble, or it will turn to paste!
Line a 12-count muffin tin with baking cups, and fill each cup with batter about 3/4 of the way.
Top each muffin with the remaining blueberries and sprinkle the crumble over.
Bake them for about 18-20 minutes, until a toothpick comes out clean. Let them cool for 10 minutes before removing from the pan.
Keep stored in an air-tight container for up to 5 days, refrigerate for up to 1 week, or freeze for up to 2 months. I like to warm mine in the toaster or microwave and top with some vegan butter!