Preheat oven to 350F
In a large bowl, add ripe bananas and mash until completely smooth
Add melted butter and sugar to mashed bananas and mix to combine
Add Greek yogurt and eggs and mix until all is incorporated
Slowly add in dry ingredients (flour, baking soda, cinnamon) and fold until completely combined
Make cinnamon crunch topping by combining melted butter, sugar, flour, and cinnamon in a small bowl
Pour batter into a lined loaf tin and top with cinnamon crunch mixture
Bake at 350F for 55-60 minutes until cooked through
Make icing by mixing confectioners sugar and milk in a bowl
Top cooled banana bread with icing and enjoy
