Preheat oven to 350 and line muffin tin with 12 liners.

In large bowl combine coconut flour, baking soda and salt.

Add in beaten egss and mashed bananas to flour mixture.

Slightly melt coconut oil and mix together with maple syrup then pour into batter.

Scoop batter evenly into 12 liners and press into corners.

Mix together all streusel ingredients until crumbly and press 1 tsp onto the tops of the muffin.

Sprinkle a pinch of sea salt on top of the streusel.

Bake for approximately 20 minutes. Test that a toothpick comes out clean and the edges are browned but not burned.

Let sit for 10 minutes then transfer to a wire rack for another 20 minutes to cool.